When I was in college I called my highschool teacher, drove home and he gave me about 2 or 3 hours of his time. He suggested I hire a tutor and for each test memorize a "cheat sheet" and once the test started write it down so I would have "notes" to refer to. This was extremely helpful memorizing all of those theoroems. You are in my prayers. I am praying you find favor in the teachers eyes and that God will quicken your understanding.