Break up

I have recently been feeling like I need to end my long term relationship of 7 years. He and I have been through a lot together and I mean anything you can think of. I love him so much but I know that I cannot meet his needs, and I know that he won’t be able to meet my needs. I have a hard time being intimate with him, I think about all the stuff he has done to me and said to me and I cannot find a way to get over it. I have tried to make it work and I have worked on myself so much with therapy and what not. I know what I need to do, but I’m scared and honestly I know it’s going to hurt and I don’t know if I can handle it. Anyone have any advice or would like to offer support?