flea

I had the same problem with linear algebra in college. It was the first time that I ever had to actually study math, and I had no idea how to do it. Everything before, I'd always just understood it the first time the teacher explained it in class. (And it didn't help when I'd get stressed out and call home crying to my mother about how I couldn't do it, and she'd reply, confused, "But you're good at math.")