Yeah, I'd find the school IT guy and ask about non-qwerty keyboard layouts. You can try get that set up on your school account. If that's not possible because they lock down everything, then go ahead and learn to touch-type on qwerty (in addition to either Colemak or Dvorak).
The thing with being in middle school or high school is that you have a lot more ability than children, and a lot more time than adults. It's the perfect place to spend some time learning to touch-type, or make chainmail, or practice doing return-on-investment and value-of-information calculations, or whatever.
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.