Want my parents to face the truth

Ok well my parents found out im gay. They refuse to accept it. Its always your to young to know what you are and your still experimenting. Well guess what guys Ive been into girls since I was a little kid. Get over it! Im sorry im not the perfect little daughter you pictured. I hate acting like a girl. Stop trying to change who i am please... Just accept it.. My own grandpa told me im going to hell! This is so stupid. Im lesbian is that such a big deal? My mom is blaming it on my dad and ugh its driving me insane. I have a girlfriend and i love her so much and i want to spend my life with her but i cant tell my parents about her or theyll freak out and yea. My mom said my dad wont except it and neither will most my family. I feel pathetic, worthless, and like i dont belong.. Well guys looks like im going to hell. I find it funny i can accept anything anyone tells me, but when my parents find something out they go crazy and try changing it.. They need to stop trying to change me and who i am!!