I need HElp!!!!!!!!

I dont know what to do anymore.. Any one out there please give me advice. I am so confused and I hate life. Nothing is going right. My dad is drinking and getting drunk and starting fights in our house, my sister keeps having seizers, my mom is unhealthy and had a heart attack when she was 34. I DONT KNOW WHAT TO DO ANYMORE. Each and everyday i wonder what is gonna happen becuase i know i will come home and My dad will be drunk and start a fight. Once again he had to leave us. Tomarrow our WHOLE family is coming over and my mom and dad are gonna talk about everything. for 21 years my mom has gone through Hell becuase of my dad. And for 21 years my mom put up with it becuase she didnt want me and my sisters to grow up without a dad. Yes my dad supports us and buys us EVERYTHING but i would rather be living on the streets and have a father that actually loves us. I believe that right now EVERYBODY in the whole world is in Hell. I am dead serious. Once we all are in Heaven or Hell thats when life will begin for me becuase i know i will go to heaven and i know my family will to. And thats when my life will begin. But i am a 14 year old girl that is stressed out and scared to even be in my own house. I cant take it anymore. He knows we all love him but he has lost all his trust from me. I cant trust him anymore becuase he has promised us our whole lives he will get help and he still hasn't. I dont know what to do anymore. i will love him for ever but i dont know if i can take it anymore. I AM SICK OF LIFE AND EVERYTHING>>