I just came back to this topic,
I was surprised to find so much new responses, didn't expect it.

I think my problem is part of a different problem. I recently had my first therapy session and it was confirmed that I have psychological trauma. The next time I see him I will raise this sex problem as well. While the sex is a huge part of the problem it is not only that. The more I know someone the less I have the desire to be touched or to touch that person. I can't create/keep any relationships as well. My problem doesn't come from the stories of happily ever after, or the society. But I'm also not sure I will be able to solve it anytime soon. I have told t myself many things, but logic not always can change the way we feel toward something. Anyway I have to go to work now, when I come home I will read more carefully and possibly reply again.

Thank you so much for the responses and the shared personal experience.
hugs.