I can't go on with my life anymore?

i have two months left of school. I'm sitting on my bed, I'm suppose to be in school in an hour, but I cant, i just cant go on with it anymore i'm still on my pj's i cannot take a shower just the thought to be in cl makes me stomach blow and i get really tense inside, i cant move i want a change i'm scared of going to cl, i'm a foreign girl who lives in chile, im actually chilean but i grew up iin the united states and now i'm in college here in a different country where I dont fit in and all the girls are really jealous cause i lived in the U.S and i know english, even teachers are jealous and they often attacked me with indirects about the U.S. I'm actually proud to have lived my entire life there... i know it might be hard to relate for most of you who read this cause this types of things are hard to find but i always felt like the outside here and in the U.S more here though cause of the culture shock.....so what am I to do in this situation I'm really scared and depressed. i know most of you might think "why cant you just adapt isnt it your own country" that has nothing to do with it, cause i grew up in different culture....so yeah....i dont wanna go i dont know what to do with my life im flunking out...help