Can Anyone Help Me Please ... ?

Hey, over the past couple months since around January my parents have divorced and my sister is having alot of problems with friends and school and has depression and really cannot control herself anymore. I dont know her at all i havent actaully talked to her in a bout a month or so and i dont want to. Shes the reason my parents divorced and has ruined the last couple years because how she acts. That really doesnt bother to much there divorced but i know its her fualt. Ive become to the point were im not really into hanging out with friends and i just like to be left alone. My parents just piss me off because off they annoy me so much. My dad is not as bad though. Honestly i think about suicide every single day but not sure i could really ever do it. I would not say im socaily awkward but that i am just extremely extremely quiet in groups of people. I can talk to girls and guys fine. Girls really dont even make me happy anymore like i dont have problems getting them really.. people always tell me i look sad and wonder why i skip certain events. I am a beast a lax so i am told :D and i am very good. I also play guitar i would say pretty freakin good. I love head banging and jumping around to breakdown metal like motionless in white. I dont dress "emo" but i like to wear band shirts and such. im getting more towards that look this summer. Anyways my friends dont rlly get that side of me.. I only listen to post core and metal along with some waka and wiz.. I feel angry at everyone in my family and i hate doing things with them. With friends im so quiet im not even noticed. I want help to feel happy im so angry sad and mad at everyone. im not seeing some doctor person either so dont tell me. Ill do this own my own so any tips or stuff you can tell me shankkkkk youuu :] - Josh :D