I feel so alone . :"(?

i got past 7th grade with fake smiles and fake laughs . but i can't do it anymore . :( none of my friends talk to me outside of school , and everytime i open facebook i see all the ggod times there haveing with their friends . it literally makes me cry myself to sleep . my parents fight and my brother is going to college . my parents sometimes blame their fights on me . and it hurts alot , alot more than i give credit to . sometimes i don't even want to get out of bed . and i'm tired , really tired . i'm loseing this battle and i need help . i just need a help . :"( and no one seems to care .