The assumption of school is that you don't want to learn and so you need to be forced to. For all I know this may in fact be true for most kids, and so school is necessary for them. However if you are self-motivated to learn then school is massively inefficient.
There is no need for you to waste the next two years. You can, if you wish, undertake a self-learning program (home school yourself). While it is true that there are things that will get by staying in school, it does not mean that you cannot also get these things outside of school, especially with a little planning. You will still get into a good college, have friends, develop your social skills, keep your future options open, and so on. The book I mentioned explains how.