My Name Is Heidi And I Am 48 Years Old

My name is Heidi and I am 48 years old and the mother of 6 daughters ages13-21 and the grandmother of 3. I've been in a relationship for the last 17 years. I feel over whelmed and I don't care if I ever leave the couch or talk to anyone in my house again. Everyone in my house is being supported by me except my boyfriend that receives SSI . He pays the rent and i'm responsible for everything else. I get paid every two weeks and give him money for himself, because he is a stay at home dad. Everytime I want to do something for myself he says I have an addiction. Mike is very distant from me and my kids do absolutley nothing for themselves. I am the one that works everyday and then i come home and have to pay bills, clean house attend school functions, babysit my kids' kids because of course I have no life of my own. I don't drink or do drugs, I don't go out with the girls and I don't have someone on the side. I have very seriously thought about going and getting my own place. I can't take it any more please help me i'm drowning and i'm running out of steam. I have suggested going to counseling with my family and they think that I am the one that needs the help. I get told that I need to make better use of my time. I need a vacation.....HELP ME PLEASE