Life keeps crashing down what should i do?

ok i HATE 2011 right at the beginning my best friend was cussing at me all the time online then a few weeks into the year one of my uncles died after i tell my friend he died my friend didn't care my friend kept cussing i only talked to him online because it was winter after a month of him cussing at me online i went to his house and asked him about it he told me his account must have gotten hacked but i didn't believe him because he was doing the same thing at the end of 2010 and then i knew it was him because i was also talking to him on skype after i talked to him in person about him cussing at me it stopped but then it started again about a month later again he told me his account got hacked and it stopped it went on and off like that till around may 17 then he started again a few weeks ago when he got a gf so then i just stopped talking to him but i would always think about him so last week when i finally forgot about him another one of my uncles die the best day of this year turned into another same day of sadness and pain i only have 1 friend that cares about what's going on in my life the rest i'm just a toy or someone for them to talk to now i don't know what to do with my life because when i'm down life says no happy days for and when i'm happy life says u r not suppose to be happy and everything crashes on me when i'm sad i think negative thoughts but I've gotten used to being unhappy so now i'm always saying i'm fat,ugly,and retarded and it seems like most of my class agrees with my opinion of myself so now when i go to back to school clothes shopping i'm going to get a lot of black i hate and always will hate 2011 but will i ever be happy again? any1 know how i can be happy when most of my friends don't care about me? plz any1 help me i feel alone in this world with no friend and no pets to help me feel better i'm alone in this world and only 1 person cares :'(