Yeah if you ever have a question which you made a mistake on: GO on a google doc( or you can write it on paper )
have four columns: The screenshot of the question, What you did wrong, what was the correct approach and what you will do differently next time. EVEN If you make silly mistakes put it on there. So that before the exam, you can just flip through it and see the mistakes you made and it will make you conscious of avoiding those mistakes. You can even review it after adding questions from homework and stuff. That's what I did for myself and it genuinely helped me a lot last term.
Just make sure you dont waste too much time on making these, it should be very quick for each question