Please don’t go down the artificial vile fake look op. If you want to start going to a gym, then do so, if not, don’t.
Have a look around, when you go shopping etc. we’re all different shapes and sizes, different hair, eyes, smiles, and personalities. Lots of couples don’t look like a chavvy insta couple, and are happy in love. I get the self-confidence thing, maybe try doing some activities you enjoy, and just get used to meeting like minded people. It isn’t a good idea to have your donor as your first, horribly messy emotionally and I personally feel donors going this way are taking advantage.
There are going to be a lot of women, looking back on themselves with their huge painted on eyebrows, ridiculous eyelashes, monkey bum lips and fake hair/nails, who will utterly cringe at how they walked about.
Also, what happens in the morning when you haven’t got all the slap on?
and ps op - sex is over rated, unless you’re with someone who is more focused on your pleasure. Without that it’s hot, not necessarily comfortable and generally sticky and messy. And you might find it more mentally challenging than you expect.