Highschool sucks for me big time :(?

okay im 16 i transitioned to this school last yr in sept. so far it really, really sucks for me..first off its fullll of cliques, 90 percent of them reject me. i had this crush on a boy whom i had a crush on since november and found out he ''hated me and a relationship was never gonna happen'' and he was going out with this preppy **** in a couple weeks (i guess opposites attract..) since she had broke up with her bf. i thought he liked me because he was always talking with my friends finding out my name blushing when i talked to him him always staring & following me ect..only the ''losers'' at my school bother talking to me. ill say ''hi'' to other people and theyll just walk off ignore me or just say ''okaaay O_o'' and back off. people will tease me often, the preppy girls will har me in the hallway, even the nerds like theyll shout at me tell me to shut up when im talking when i sit near them and try joining their conversation (im quite a smart girl so obviously id want an intelligent conversation) theyll just go move to another table and leave me. theyd just blank stare at me like everybody else come right up to me and call me a loser be all sarcastic to me and such talk behind my back & insult me and my friends and tease me. the preps spread rumors about me and everybody tries to avoid me. i am often cled as ''weird-looking'' or ''ugly'' because im one of the few people in my school to have red hair/freckles/pale skin and people like that at my school are looked down upon, i admit im not the most attractive person alive but not the ugliest either. im a nice person and i try to befriend anyone i can but its seriously hard. people just look at me like im invisible or theyll just look at me as if i was satan and move away from me or just har me again. highschool really sucks i need some help please what can i do??