I just realized i have a great life... Yet it sucks?

Ok... So i'm an average girl... I have a great family, i occastionally get into fights with my mom, but hey no one's perfect... I have a few close friends, i get good grades, i'm a pretty darn good figure skater (and i'm not usually one who likes to brag but hey i'm trying to give you people something to go on...). People would kill to have my life, yet here i am writing this journal entry about how great yet suckish my life is... I'm not happy, i may have a caring family but i just feel out of place and sad... I don't know why... sure i'm a little depressed, and yeah i've got some social issues... and i've got to go to therapy every other week because of a cutting incident (which only lasted about two days because one of my friends found out...). i'm missing part of my finger, and i've got two scars above my left eye, my house burned down when i was ten killing my first cat, and injuring my first dog... it all started then, after the house fire everything went downhill from there... my brother got expelled from collage this year because he plagerized, and was caught abusing drugs and alchol... to people outside of my family we may look like we're the perfect family but really were not and my mom wonders why i have issues... she says i can't dye my hair black because people will think i'm depressed... well guess what... I FUCKING AM DEPRESSED!!!!!! i'm a emo/bi-polar (i have a lot of mood swings)/bitch!!! i'm a loner i mostly keep to myself and read or study!!! but that's just because i'm afraid to have friends because i'm afraid to get hurt...