I'm not trying to stuff on your situation because only you can judge what you think is a bad situation.
However, attempt looking at it from a different perspective.
Sure, your parents may not be the best in the world, but they are still around, aren't they?
A lot of people would say you're lucky just on the basis of even having parents that you have a day-to-day relationship with.
Anyways, good luck in your situation.