I've never came ever, whats wrong with me?

Okay so like, I've had sex with a few people and I've even touched myself, but for some reason I can't ***. I can enjoy sex, like the pleasure will be there but I never get like anything more than just the same pleasure. I'm not very sensitive at all. I don't enjoy being eaten out or having my clit played with either, it just feels like nothing to me. There was one time recently where I thought I was about to but he had to stop because he had came so ya know. What do you think I can do about this?