Best way to prep for the AP Biology Exam in May?

I know this is way too early, but I still want to know what the best way to prepare for the exam is.
Before I ask, I really would appreciate if only people who got 4s and 5s gave me advice.

  • What prep book did you use?
  • When did you take the exam? (They changed their format not too long ago)
  • How long did you study for the exam?
  • What do I NOT need to know for the exam? (From Pearson’s/Campbell’s AP Biology book)
  • What did you end with in the class?