Why do my parents hate me?

Because they suck

What did i do wrong?

Absolutely nothing, a parent's job is to nuture and support their child, not belittle and chastise them

You are a good person, you haven't done anything worth beating yourself up over

I'm so sorry. I've been there. :(

WRONG, you have done nothing wrong at all, it is in fact the inverse, ALL of your deriders and enemies are wrong!!!!