people like that will exist no matter where you go, it's not just restricted to high school. no matter where you are in life you will meet those that follow the stereotypical norms or try to be fake and follow what they believe to be the in-crowd and blahblahblah no one said you HAVE to change. change is something that, if it happens, should be natural and by choice, not because of societal pressures.
and i'm sure you aren't the ONLY person there that acts as you do, or is an individual like yourself. high school is made up of all sorts and types of kids...you just have to find the right people, the right clubs (like join a team or something) for you