I took advanced Calculus in High School, all that math you listed is extreme easy if you just pay attention. I was getting 50's until I decided to move to the front of the class and away from my friends in that 1 class, and immediately on my next test (mid terms actually) I got an 83%, and then after that test I never made less than 90% except for one failed test. Even scored 100% a few times.

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