What to do? me against the world? please help..?

Hey, basically I have loads of haters in school, majority is boys I guess, after having arguments and falling out, I'm ok with the girls but they're all fake any ways..but I don't know what to do anymore? Shall I stay in the school or leave as its my last year..but the thing is the people in the school are affecting my everyday life/education etc..what should I do i cant always act like I'm happy!? I feel as if its me against the world, I have no support from anyone? I'm a girl, year10..thanks in advance.