I'm sorry I'm trying to establish my future now, based on what I love NOW and another thing, I'm not running around asking how I should be making my great game I'm simply asking what tools I should use for the near future. Dick.
You probably won't understand most, if not all, of the things you need to know to program a computer game. I would say you need to wait at least a couple of years, as you definitely NEED Algebra I and II and Linear, but Calculus does come in handy (not COMPLETELY necessary, but almost). And that is only for the graphics part (which is surprisingly only a small part of programming a game, about 10%). You definitely aren't the first kid out of your age group running over here for advice to implement their "great new idea."
EDIT: Oh and btw I know Algebra, I don't know how much but a fair bit