It was ALL proofs (proofs SUCK. I never EVER got the hang of them. Ever. not till today!) and truth tables (not p → ~q type logic. Just tables, no other struggles in logic). I excelled at Algebra 2 HN, and I am much better at applying something I know than just memorizing a bunch of postulates. I took Precalc/Trig (one course in our HS) over summer too.