OP: I just want to say how very, very sorry I am that you have to go through this. It is unfair. There is NOTHING wrong with you. You should not have to hide who you ARE.
Unfortunately, I think your best strategy is to hide your sexual orientation for now. Please realize that most kids have to hide sexual activity from their parents. Not the same, I know, not even close, but maybe it helps a little?
Please realize that 4 years is short and your goal needs to be to get an education so you can support yourself and then be your authentic self. In the meantime, if you can get away to college, hopefully there you can get more support and be more able to live openly.
(((((Hugs)))) and good luck. Not everyone out here is a bigot.