I'm a senior and I'm in my fourth (and last) year in college. Traditionally I'm an A/B student, I haven't ever earned a grade in a course below a B. However, this quantum mechanics course I'm taking has me scared. I'm taking quantum mechanics using Griffiths as a textbook and my school curricula has it such that we'll cover the whole book in two semesters (next semester will cover the other half of Griffiths) However, I've looked over the material, and I feel that I'm really unprepared for this level of difficulty. I know I'm not alone but I don't know if I have the ability to solve these complicated abstract problems and I worry if I'm going to struggle to even pass the course. Have other people felt this way? How did your first quantum mechanics course go?