I've read that this issue can be categorized as psychosomatic or all in your head but you know, that doesn't answer your question, right? Here is a long post of others in the same boat as you. https://
www.medhelp.org/posts/Urology/loss-of-sensation---cant-reach-orgasm/show/287164 What about during masturbation? Able to reach orgasm? And it looks like many people have had success with Viagra. Something you'd consider?
Someone was telling me about therapists that their sole role is to improve one's sex life. Have you ever heard of that? Guess a lot of folks have issues ranging from psychological to physical that get in the way. Would you ever consider working with one? I figure if it improves things even a little, might be worth it?