How can I move on...

My now ex is constantly telling me how he still cares for me and wants me. But then tells me deserve to be in pain from the break up. I had been with him for two years and it wasn't the best relationship. He refused to make plans with me and would lie about plans so he wouldn't have to invite me around his friends and family. I love him so much and it always hurt and caused fights. The fights were then my fault because I didn't "accept" him. I still cry myself to sleep every night not only because I miss him but because he is still telling me how much he cares for me and then turns around and tells me everything that went wrong is my fault. It's a constant roller coaster of him making me feel good to tear me down harder. I want to move on. I want to figure out how to start remembering that I'm worth something again. Any advise on how to put myself back together with someone still knowing and using your weakness to completely destroy you.