How do I make myself comfortable with physical intimacy?

I have been v!rg!in for 25 years (not to flex buy mostly by choice) because I come from a conservative family where I have unconsciously wired myself into believing s3x before marriage is sinful and this has affected my relationship with women.

Everytime I'm talking to someone new on dating apps and things get steamy to the point we both end up s3xting (it happens a lot, maybe I'm also one of those theoretical slat atp) I tend to not meet the other person irl because how do I tell them I'm complete opposite of the dominating fictional man I'm on dating apps. im rather scared of s3x because of my inexperience at an age where most of the women i meet already have enough experience.

I feel like I would be judged with my performance and since the women i would meet now would have fair amount of experience compared to the women i was meeting five years ago, I get even more scared to put myself out there.

It has hindered lot of casual as well as long term relationships. I tend to bring the freaky side in Most women i meet but it kind of backfires me because more often than not it comes to expecting hookup on first date and that makes me wanna pull back not because I don't want it but because of my s3x phobia.

What makes it worse is im 25 and I haven't been naked in front of any woman, and it kinda gives me body dysmorphia too. (I'm a little on the skinny side) Though my current girlfriend still wanna see me shirtless all the time and wanna have s3x with me. She even threatens me with I will knock on your door and f you occassionally because I'm too reluctant to give in. I've currently told her ive that I've sworn off all things second and third base for a year, aka celibacy.

Anyway, can y'all help me out with it. I don't know what to say but I WANNA GET RID OF THIS MENTAL BLOCK SO BAD.