Trapped with family

My family's vibe is so toxic. I have to fake arrogance just to get along with them and hate myself afterwards. They are so offensive to everyone and have a massive superiority complex. I don't have enough money to live on my own so that's why I'm stuck. I tried to show them the right way to communicate and that certain things are rude to say but then I get bullied in turn. They are so mean to me every day and are not loving. It makes me so sad that they're like this. I wish I had a normal family.