I don't know what to do with my life?

I'm starting college this August, and I really have no idea what I want to do. I'm enrolled into a engineering program right now, but the only problem is that I REALLY suck at math. Seriously, the highest level of math I ped was Algebra II, and I barely ped that with a D. Is math something you can get good at over time, or am I just too far gone? That question led me to consider another career, a high school English teacher. High school was cool, I love english, but I have bad social skills. I also have a short temper. Is it possible to be a teacher with those ailments?