Welcome to Neuro Talk. I do understand about family being disfunctional. My own is too. You found a good site here to talk. I have met alot of good souls, that have helped me through alot of difficult times.
I know for sure, that you can't control anothers behavior and make them act right. It hurts when your own family does things to injure others in the family. This happened in my family too. I get sick of it just like you do. It makes me mad and sad all at once. You are not alone. I guess what we can do, is make the best of our own lives, and stick with the good friends you do have. sometimes you just have to let go of those who make you feel bad for your own mental health. Being around that kind of atmosphere is toxic. Keep coming back here. You will meet some nice people who will understand what you are going through. take care of yourself, and those close to you. ginnie