Don't worry, find people outside family who are nice, they exist. Hang in there. I don't know you so I don't know what to say, but the fact that you aren't sinking to their level and hurting them back you are more wise and bigger person, try to ignore it go for a walk, just don't engage in that environment.
Hey! I can only imagine how difficult it must be for you.
I am sure you are very courageous to be dealing with it all.
You are strong and will pave your own way.
Stay strong and determined.