How do I live with my negative and nasty family?

I'm so sorry. I have a friend who has a "family" just like that and once she turned 18 and left for college on a full scholarship to some ivy league school, she was free forever. Just wait until you turn 18 and go to college. I know it seems unbearable at times, but my friend got physically abused sometimes and she survived 3 years. If she can do it, you can do it. But just ignore them for the time that you're stuck with them. They're obviously not good enough for you and they really don't deserve you. You sound like a good kid. Good luck.