Hey there, sorry your feeling so confused.
Can I ask a question?
How do you know if you love sex if you haven't had it, I mean the idea of it and the actuality are two different things.
I only ask cos I am genuinely curious, I was similar to you for most of my teens, early 20's, hated being touched. Struggled to even cuddle my own daughter.
For me it was a control thing. But it sounds very different to your experience.
Whatever it is sounds significantly deep rooted, and is probably worth discussing with a professional.

I do hope someone here Can offer you some advice and help you find a way to enjoy people's expression of care and affection for you as a person.
Question?
Do you feel worthy?
Do you feel deserving of affection from others?
Do feel like they might want something from you you can't give?
Is your revulsion of them, so could you say, shake their hand without feeling repulsed at having touched them?
Or is it revulsion At them wanting to touch you?

Sorry to bombard you with questions, my curiosity rather overstepped polite societal norms. I apologize.

Anyhoo, here's hoping you can find some common ground amongst the folks here.
All the best and Take Care.