I think first thing you should do is,educate yourself.Learn things.Find something that you are good at.you can start by reading,writing.You are too focused  on all the negativity around you.And the more you focus on it,the more you feel negative and resentment.We all have crazy families.I know I do.Sad part is we don’t get to choose our blood family.It is what it is.You can’t change them.The only person you can change is you.So are you going to sit there and pity you?Or do something about it?The choice is yours.