I don't know what to do anymore

I have done everything I can to get my man to understand that I want to get off with him. He will get me right there and either he will stop because he is cumming and will not finish me off or he says his hand gets tired or he gets tired. I can't have a good orgasm with just sex alone. Not many women can. But I have talked to him and talked and talked. And for a small while, he does better. But then it's right back to this. It's still fun making sure he gets off but what about me? Don't I get one too? It's starting to make me cry because for him, it's good. But for me, it's just not. I went to the bathroom, peed and cleaned up. And it took everything in me not to ball. I really have no idea what to do anymore. I have tried doing it But truth is, it doesn't make me feel any better. It's not fun and I don't enjoy myself. So I'm just down about it. I haven't hardly looked at him.....