I feel like life is pointless idk what to do?

I just want you too know that your not alone! By no means should a girl ever have to feel half the pain that you do. And i also know how it feels to be fat and almost unloved, my dad is the biggest piece of **** he threatens to kick me out also. If you live by their rules for 3 more years it will go fast you can make it i have high hopes for you stick in there hun. If you really need to confide in someone face to face please do not be worried to see a counselor. Stay strong keep your self busy and everything will work out. Peace and Love