Hey!
I know 'screwing up' two SACs can be super discouraging, but don't lose hope because as long as you continue to improve and get better marks, you'll do well! Honestly, in Physics, you do quite a few exams so underperforming in two SACs won't inhibit your overall study score too much. Although SACs do make up a percentage of your study score, it really does come down to the exam. Can I ask what study score you're aiming for or what do you consider as a 'high' study score?