Being disrespected by everyone in my house

It seems we are parenting against each other rather than as one. I say something or tell the kids to do or not do something and bf goes against me. It's come to the point where nobody listens to me. I feel like a maid and nanny more then a mom/gf. I'm done with it. I dont want to be here anymore. He wont try couples therapy or like a parenting class or something that could help us learn to parent together. We are a blended family if 7 for 2 years. I dont know what to do anymore. I dont want me be here anymore. I give up