I think i need some help..?

'm 16... my dad pretty much hates me, he mentally and verbally abuses me and my sister, he's also pushed us and grabed us to the point where it's left bruises, i always feel guilty when someone asks me about a little bruise and i say i don't know.. my sister is bi-polar and has terrible mood swings, and she also has mini mental breakdowns, my mom is recovering from depression and mental breakdowns, her boyfriend is a crazy alcoholic, my grandma is very very old school, and my aunt is always stressed out, the only two totally normal couples in my family are my aunt and uncle and they live 4 hours away. My cousin is moving, and he's pretty much like my brother... and everything I do is wrong in my dads eyes, i guess i'm just a defient rebel teenager that doesn't drink, smoke, do drugs, or go out to any crazy *** parties. I get good grades, i try to help out around the house, but i can never do enough because I have to pay for my car, insurance, gas, cell phone, clothes, internet, books, and everything for school... so i work 40 hours a week. My dad doesn't let me partake in any of the child support money... I've cutted for 1 year now and I really want to stop. I believe in God but it feels like God hates me too... I'm breaking down little by little and i think i'm going to just fall down and die.. this has been going on since i was 14... please help:(