I need serious help ASAP!?

so i'm going into high school and i'm sick of the people there. everyone is judgmental and i feel out of place there. i have friends, but lately all they care about is making another friend jealous. for example, two if my friends will hang out without me and try to make me jealous by posting all their "insiders" on Facebook. i know your probably thinking "don't let it bother you" but, no matter what, it will still bother me. so pretty much i'm sick of everyone and want to be alone. so i've considered online school. and i really want to go to just be away from everyone. but i'm not sure if i should go to online school or stay at public school. my mom told me i should stay at public school because then i can go to prom and stuff like that. but i could really care less about that stuff. She also feels that i'm "quitting" by going to online school. And, that i will also be a lazy bum by sitting at home all day. and if i do go to online school, what happens if i don't like it? i cant just go back to regular school, i'd probably get bullied even more than before! Also, i'm worried what my family will think of me, that i'm going no where with my life or something like that. all i want to do is make the right decision. please help.