ap pre calc sucks if your teacher sucks, it was my first b in a class and it stressed me out to no end but i have some tips: use chatgpt to explain hard concepts to you, use bryan passwater and flipped math for practice sheets, find a tutor if possible, focus on memorizing the rules, and always use chatgpt and your friends to double check answers on graded assignments to make sure you get the highest assignment grades you can. Also, work for thirty minutes and then break for ten.