How to stop loss? | Emotional control | Investing long term - 3 years

May 24, 2024

I have to learn how to invest on SABR stock, and I could not buy back after I sold 10,000 shares of  SABR at price $2.0/ share in February, 2024, but I did not purchase those stocks back. 

I watched those stocks at price around $2.4/ share, and then $3.0. If I still have 5000 shares of SABR, if I kept 5000 shares of SABR in February, I could have made better decision. It is called confirmation bias, 屁股决定脑袋。 

1. I have 2000 shares of SABR right now in Charles schwab
2. I have 2000 shares of SABR right now in TFSA account
3. I need to work on stop loss and sell shares for gain in short term and long term
4. I need to gain more shares if price drops, and then sell profit if share price goes up
5. Need to get ideas how to design an algorithm, overcome my laziness and also motivate me work hard on my goals. 
6. How to design the algorithm?