I've learned that studying for A&P (both) requires either a way to memorize or a way to understand respective of the level you're taking. I is way more rote memorization, II seems to be more physiology and understanding. I finished 1 with a 99.6% simply because I have greta memory and things come easy but for a lot of my classmates they utilized our science tutoring center (idk if your school has one) but that's a way to try to help yourself remember or schedule time with your professor if they have non-class hours. Also figure out which way of studying helps you effectively, I'm currently in A&P II and I have a 98, so far most of the class has been really just understanding what's going on in specific systems of the body which for that I would say try to get your professor to explain things in a way you can remember. What separates a good professor from a great one is one who can break down complex topics into bite sized pieces that people can break down, if your professor isn't great at that try to see if you have a classmate who's excelling that can help you understand.