Learning is really quite individual to the person, but I found the best way was to get my hands on past outlines, become familiar with those, and drill practice questions/exams and study model answers to learn what the prof asks generally and what they think is a good answer. Caveat here is to make sure the outlines and practice questions are from your professors class - it’s not worth your time to study a general commercial outline or generic questions. You want past exams and past outlines. The professor themselves, and older students/student org test banks are the way to get these

I wouldn’t waste time on rote memorization (save that for the bar) - law school exams are overwhelmingly about your ability to apply concepts from class to new facts, not ability to regurgitate what the law is.

FWIW I absolutely bombed my first mid-term/evaluation in 1L and graduated Order of the Coif at a T14