What should I do

It sucks that you're the family scapegoat.

Much love goes out to you as I know exactly how lonely you may feel. It's hard to cope with family members who don't treat you right or in the ways you need, and it's even harder when you still love them. Don't worry you are heard and you're not alone in this, I am struggling with something similar and the only thing I can tell you is to make sure you put your heart and your self first. Make sure that trying to get them to treat you better doesn't cost you your happiness and self worth. Focus on your goals, forgive yourself and forgive them because as much as we would like it sometimes the people around us don't completely know how to show love in the ways we need, or even at all. So that's why it's important we forgive them too and understand that they're actions and behavior towards you has nothing to do with who you are because you can't control who you are, you were meant to be who you are.. it has to do with things going on inside them, what they believe is true or what they believe it's right or wrong. That is something you can't control, but what can control is the love you give to yourself someone who actually needs it and will accept it. Just remember that it takes time and it gets lonely, but overtime I know you'll build a strong foundation within yourself and see your situation differently. You got this, let me know if you ever need to talk.