Not sure if this will help, but posting just in case.
After my divorce many years ago, I got involved with someone who represented everything I longed for next: fun! excitement! adventure! sex! All these things I'd never imagined I'd ever get to experience. I thought they were just for movies, and only for people who looked like movie stars.
He was younger than me and, I thought at the time, about 10 times better looking/out of my league.
His previous GF had been a part-time stripper and semi-professional athlete. This was before social media, so I never saw a photo of her, but my imagination went wild. I can't quite explain how it undermined my confidence when I undressed what I considered to be my inadequate, boring little body in the bedroom. I tried to do it when he wasn't looking.
It took me years to realise, long after we split up, that he loved me for being stable and kind. These were new and crucial experiences for him. And actually, as I now realise, I didn't have a boring little body at all. Not that it matters.
What I'm trying to say is that we should never be inhibited by our own self-doubt. There is absolutely no point measuring yourself on a scale of comparison. All of us, men and women, are drawn to relationships in which we learn and grow, even though we may not understand the learning and growth until many years later.