Sociopath/Narcissistic Mother: Should I leave or stay?

She sounds so much like my mother, if everyone is happy, she is unhappy and everyone is unhappy, she is happy. My mom does everything your mom does and is still doing it, she has torn our family apart. She is very bipolar and so is my sister. But I am severely bipolar. She has me all screwed up too. But, me, I have several disorder one is agoraphobia, I do not want to go outside or around anyone. Do you have a grandparent who is loving and understanding and would love and nurture and help you? i pray you do. I am almost 56 and I live a long way from my mother and sister so they can't do any more damage to me as they have. If there is a older brother or sister or anyone who you can turn to do so. My heart goes out to you and may God be with you and I pray you find a way out of this situation.. Best of Luck to you!! And being 18 you do not have to stay with her, you and one of your freind find some place to share expenses and you will see that life will turn around for you. But, please don't get into a mess by getting involved with a guy. They will use you accordingly.