Julia's coding blog - Practice makes perfect

From January 2015, she started to practice leetcode questions; she trains herself to stay focus, develops "muscle" memory when she practices those questions one by one. 2015年初, Julia开始参与做Leetcode, 开通自己第一个博客. 刷Leet code的题目, 她看了很多的代码, 每个人那学一点, 也开通Github, 发表自己的代码, 尝试写自己的一些体会. She learns from her favorite sports – tennis, 10,000 serves practice builds up good memory for a great serve. Just keep going. Hard work beats talent when talent fails to work hard.

Wednesday, November 19, 2025

Mike Douglas | Mark Douglas > Quotes

“I AM A CONSISTENT WINNER BECAUSE: 1. I objectively identify my edges. 2. I predefine the risk of every trade. 3. I completely accept the risk or I am willing to let go of the trade. 4. I act on my edges without reservation or hesitation. 5. I pay myself as the market makes money available to me. 6. I continually monitor my susceptibility for making errors. 7. I understand the absolute necessity of these principles of consistent success and, therefore, I never violate them.”

― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“A probabilistic mind-set pertaining to trading consists of five fundamental truths. 1. Anything can happen. 2. You don’t need to know what is going to happen next in order to make money. 3. There is a random distribution between wins and losses for any given set of variables that define an edge. 4. An edge is nothing more than an indication of a higher probability of one thing happening over another. 5. Every moment in the market is unique.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Most traders have absolutely no concept of what it means to be a risk-taker in the way a successful trader thinks about risk. The best traders not only take the risk, they have also learned to accept and embrace that risk. There is a huge psychological gap between assuming you are a risk-taker because you put on trades and fully accepting the risks inherent in each trade. When you fully accept the risks, it will have profound implications on your bottom-line performance.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“The hard, cold reality of trading is that every trade has an uncertain outcome.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“a greater probability of one thing happening over another. In a sense, technical analysis allows you”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Remember our definition of a winning attitude: a positive expectation of your efforts with an acceptance that whatever results you get are a perfect reflection of your level of development and what you need to learn to do better.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“We have to be careful about what we project out into the future, because nothing else has the potential to create more unhappiness and emotional misery than an unfulfilled expectation.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“the typical trader wants to be right on every single trade. He is desperately”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Learning to accept the risk is a trading skill—the most important skill you can learn.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“When you learn the trading skill of risk acceptance, the market will not be able to generate information that you define or interpret as painful. If the information the market generates doesn’t have the potential to cause you emotional pain, there’s nothing to avoid. It is just information, telling you what the possibilities are. This is called an objective perspective—one that is not skewed or distorted by what you are afraid is going to happen or not happen.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“You create your own game in your mind based on your beliefs, intents, perception and rules.”
― Mark Douglas

tags: inspirational, trading

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“This lack of support is not simply an absence of encouragement. It can be as deep as the outright denial of some particular way in which we want to express ourselves.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“When you learn the trading skill of risk acceptance, the market will not be able to generate information that you define or interpret as painful.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Unless you learn to completely accept the possibility of an uncertain outcome, you will try either consciously or unconsciously to avoid any possibility you define as painful.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“All of us are born into some sort of social environment. A social environment (or society), whether its a family, city, state, or country, implies the existence of structure. Social structures consist of rules, restrictions, boundaries, and a set of beliefs that become a code of behavior that limits the ways in which individuals within that social structure can or cannot express themselves. Furthermore, most of the limitations of social structure were established before we are born. In other words, by the time any of us get here, most of the social structure governing our individual expression is in place and well entrenched.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“However, market analysis is not the path to consistent results. It will not solve the trading problems created by lack of confidence, lack of discipline, or improper focus.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“They create our expectations. Keep in mind that an expectation is a belief projected into some future moment. Since we can’t expect something we don’t know about, we could also say that an expectation is what we know projected into some future moment.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Everyone who trades ends up learning something about the markets; very few people who trade ever learn the attitudes that are absolutely essential to becoming a consistent winner.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“1. I objectively identify my edges. 2. I predefine the risk of every trade. 3. I completely accept the risk or I am willing to let go of the trade. 4. I act on my edges without reservation or hesitation. 5. I pay myself as the market makes money available to me. 6. I continually monitor my susceptibility for making errors.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

1 likes

“Learning to accept the risk is a trading skill—the most important skill you can learn. Yet”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

1 likes

“They manage our perception and interpretation of environmental information in a way that is consistent with what we believe.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“I define random trading as poorly-planned trades or trades that are not planned at all. It is an unorganized approach that takes into consideration an unlimited set of market variables, which do not allow you to find out what works on a consistent basis and what does not.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

1 likes

“So if you are afraid of being wrong or losing money, it means you will never learn enough to compensate for the negative effects these fears will have on your ability to be objective and your ability to act without hesitation.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“How do we remain disciplined, focused, and confident in the face of constant uncertainty?”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“you asked me to distill trading down to its simplest form, I would say that it is a pattern recognition numbers game.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“If you are unable to trade without the slightest bit of emotional discomfort (specifically, fear), then you have not learned how to accept the risks inherent in trading. This is a big problem, because to whatever degree you haven’t accepted the risk, is the same degree to which you will avoid the risk. Trying to avoid something that is unavoidable will have disastrous effects on your ability to trade successfully.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

1 likes

“1. Anything can happen. 2. You don’t need to know what is going to happen next in order to make money. 3. There is a random distribution between wins and losses for any given set of variables that define an edge. 4. An edge is nothing more than an indication of a higher probability of one thing happening over another. 5. Every moment in the market is unique.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

1 likes

“When you operate from the assumption that more or better analysis will create consistency, you will be driven to gather as many market variables as possible into your arsenal of trading tools. But what happens then? You are still disappointed and betrayed by the markets, time and again, because of something you didn’t see or give enough consideration to. It will feel like you can’t trust the markets; but the reality is, you can’t trust yourself.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“If you have to win, if you have to be right, if you can’t lose or can’t be wrong, you will cause yourself to define and perceive categories of market information as painful.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“When you genuinely accept the risks, you will be at peace with any outcome. When you’re at peace with any outcome, you will experience a carefree, objective state of mind, where you make yourself available to perceive and act upon whatever the market is offering you (from its perspective) at any given “now moment.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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Showing 31-56 of 56

“The winners have attained a mind-set—a unique set of attitudes—that allows them to remain disciplined, focused, and, above all, confident in spite of the adverse conditions. As a result, they are no longer susceptible to the common fears and trading errors that plague everyone else.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“The fact is that if traders really believed that anything could happen at any time, there would be considerably fewer losers and more consistent winners.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Taking responsibility means acknowledging and accepting, at the deepest part of your identity, that you—not the market—are completely responsible for your success or failure as a trader.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Those traders who have confidence in their own trades, who trust themselves to do what needs to be done without hesitation, are the ones who become successful. They no longer fear the erratic behavior of the market. They learn to focus on the information that helps them spot opportunities to make a profit, rather than focusing on the information that reinforces their fears.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“The best traders aren’t afraid. They aren’t afraid because they have developed attitudes that give them the greatest degree of mental flexibility to flow in and out of trades based on what the market is telling them about the possibilities from its perspective. At the same time, the best traders have developed attitudes that prevent them from getting reckless.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“consistency is a state of mind that, once achieved, won’t allow you to “be” any other way.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“People normally describe this kind of internal mental shift as an “ah, ha” experience, or the moment when the light goes on. Everyone has had these kinds of experiences, and there are some common qualities associated with them. First, we usually feel different. The world even seems different, as if it had suddenly changed. Typically, we might say at the moment of the breakthrough something like, “Why didn’t you tell me this before?” or, “It was right in front of me the whole time, but I just didn’t see it”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“What I’ve discovered is that trading is chock full of paradoxes and contradictions in thinking that make it extremely difficult to learn how to be successful.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“would say that many, if not most people, grow up in a family and cultural environment that gives little, if any, objective, nonjudgmental support to the unique ways in which we feel compelled to express ourselves”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Ultimately, for this process to work, you must choose consistency over every other reason or justification you have for trading. If all of these ingredients are sufficiently present, then regardless of the internal obstacles you find yourself up against, what you desire will eventually prevail.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

0 likes

“When you operate from the assumption that more or better analysis will create consistency, you will be driven to gather as many market variables as possible into your arsenal of trading tools. But what happens then? You are still disappointed and betrayed by the markets, time and again, because of something you didn’t see or give enough consideration to.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

0 likes

“Why wouldn’t someone want to win? It’s really not a question of what someone wants, because I believe that all traders want to win. Yet, there are often conflicts about winning. Sometimes these conflicts are so powerful that we find our behavior is in direct conflict with what we want. These conflicts could stem from religious upbringing, work ethic or certain types of childhood trauma.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Finally, our beliefs shape how we feel about the results of our actions.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“objective perspective”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“up”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“If there is such a thing as a secret to the nature of trading, this is it: At the very core of one’s ability 1) to trade without fear or overconfidence, 2) perceive what the market is offering from its perspective, 3) stay completely focused in the “now moment opportunity flow,” and 4) spontaneously enter the “zone,”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“What motivated it? How was the trade managed? Was it successful? Why? Did you lose? Why? Write down your assessment and refer to your comments before making your next trade.”
― Mark Douglas, The Disciplined Trader: Developing Winning Attitudes

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“This is a classic example of how we become susceptible to unstructured, random trading—because we want to avoid responsibility.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Or you can learn how to redefine your trading activities in such a way that you truly accept the risk, and you’re no longer afraid.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“attitudes about being wrong, losing money, missing out, and leaving money on the table.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“The freedom is great. All of us seem to naturally want it, strive for it, even crave it. But that doesn’t mean that we have the appropriate psychological resources to operate effectively in an environment that has few, if any, boundaries and where the potential to do enormous damage to ourselves exists. Almost everyone needs to make some mental adjustments, regardless of their educational background, intelligence or how successful they’ve been in other endeavors.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“now protecting ourselves from information.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Where does passionate interest come from? My personal view is that it comes from the deepest level of our being—at the level of our true identity. It comes from the part of us that exists beyond the characteristics and personality traits we acquire as a result of our social upbringing.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“The best traders stay in the flow because they don’t try to get anything from the market; they simply make themselves available so they can take advantage of whatever the market is offering at any given moment.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“we were unprepared for how some people in our lives had the potential to behave. If their behavior caused us to flip into a state of emotional pain, then we quite naturally would have felt betrayed.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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“Anything we decide to do or any outward expression of behavior will be consistent with what we believe.”
― Mark Douglas, Trading in the Zone: Master the Market with Confidence, Discipline, and a Winning Attitude

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douglas winning trader 7 beliefs to be a winner | Mark Douglas, in his works such as Trading in the Zone

Mark Douglas, in his works such as Trading in the Zone, identifies seven "Principles of Consistency" that a winning trader internalizes as beliefs. These principles form the mental framework necessary to trade without fear and operate in a probabilistic mindset:

The 7 Beliefs of a Consistent Winning Trader

I objectively identify my edges: A trader must be able to define their trading system's advantages based on clear, objective criteria.
I predefine the risk of every trade: Risk management is paramount. Before entering a trade, the maximum potential loss must be determined and accepted.
I completely accept the risk or I am willing to let go of the trade: This is a crucial belief for emotional discipline. It means that once a trade is entered, the trader has made peace with the predefined risk, which prevents fear from influencing their decisions.
I act on my edges without reservation or hesitation: When an edge is identified, the trader must execute the strategy flawlessly, without doubt or hesitation, trusting in the statistical probability of their system.
I pay myself as the market makes money available to me: A winning trader takes profits consistently as they become available, reinforcing positive behavior and managing their capital effectively.
I continually monitor my susceptibility for making errors: Self-awareness is key. A trader must constantly be aware of their own psychological state and potential emotional triggers that could lead to errors.
I understand the absolute necessity of these principles of consistent success and, therefore, I never violate them: The trader views these principles not as suggestions but as an essential, unshakeable foundation for long-term success.

Thinking Like a Trader

Douglas argues that adopting these beliefs helps the trader operate from a mindset based on probabilities, much like a casino, rather than trying to predict or control every single outcome. The core truths underpinning this approach are that anything can happen, an edge is merely a higher probability of one outcome over another, and individual wins and losses are randomly distributed within a given system.

5 min chart | Learn how to read downtrend | MSFT, QCOM and more

Tuesday, November 18, 2025

PLTR stock | PLTD short 1x ETF

PLTD short 1x ETF

PLTR stock | D chart | Peak points

AMZN stock | Short ETF | D chart

D chart

Peak point - $258.60 - Date - Nov 3 2025 - Time to consider short AMZN stock using ETF

AMZD - D chart

How to determine if it is peaked or not?

Nov 4 - 30 m chart | K Line | First big short K line | Buy AMZD

Short indicator | FINRA Shorts 20

Are Oracle credit default swaps flashing an AI warning sign?

AVGO stock | Leaderboard | 40%, exited on Nov 2025

Leaderboard notes:

May 2 AVGO joined leaderborad half position
May 27 trimmed to quarter ahead of NVDA earnings
June 12 raised back to half
August 26 August 28 raise to full position at $308.13
09/04 Trimed back to half stake $306.55 ahead of earnings
10/27 Oct 28 raised to full, raised to 3/4
Nov 7 Trimmed to half

Trades missing in 2025 | TSLA, ORCL, SMCI

Lessons learned:

Learned how to use marketsmith indicator to determine pivot points, so it is easy for me to short Orcl or TSLA when the stock is at the peak.
I did short SMCI, but I did not learn to hold it more than 3 months, from SMIC $60/share to $30/ share; I should learn to bet on long term.
AI bubble is the real, and I should learn how to profit it from the market's mistake.
Work on other things - Margin account
My trades on QCOM stock - Lessons learned and what I should learn from my loss
More

Orcl stock | Short or long ETF

For those interested in leveraging the stock movement of Oracle Corporation (ORCL), there are both long (bullish) and short (bearish) focused Exchange Traded Funds (ETFs) available, though they are specifically designed for active, short-term trading. They are not suitable for long-term investments.

Long ETFs

For investors who believe the price of Oracle stock will increase, there are leveraged "long" ETFs that seek to provide amplified daily returns:

Defiance Daily Target 2X Long ORCL ETF (ORCX): This ETF aims to provide 200% (2x) of the daily percentage change in the share price of Oracle Corporation. It is designed for sophisticated investors who actively monitor their positions. More information can be found on the Defiance ETFs website.
Direxion Daily ORCL Bull 2X ETF (ORCU): Similar to ORCX, this fund seeks 200% daily leveraged investment results.
Leverage Shares 2x Oracle ETC A (ORC2.L): This exchange-traded commodity (ETC) also targets two times the daily performance of Oracle stock and trades on the London Stock Exchange.

Short ETFs

For investors who believe the price of Oracle stock will decrease, there are inverse "short" ETFs:

Direxion Daily ORCL Bear 1X ETF (ORCS): This fund seeks daily inverse (-1x) investment results, meaning it moves in the opposite direction of the Oracle stock price on a daily basis.