I’m felling demotivated because I had a bad grade, I don’t know how I got such kind of grade. However, I’m looking to get a very good grade in the next test, that will count 100%. I’m in the first year of physics, what advices do you have on how to study(CM), which exercises? What books should I read? What should I do? I really want to get very good grades, so I can pursue a career in investigation. Thank you for your time. Best wishes!