Hi OP, I really sympathise. I don't know if this helps but hope it does!
I do not have the exact same issue as you, but I gave birth to twins completely unassisted in a loo. I had a bad 2nd degree tear where the skin and muscle ripped around my vagina, but also a ragged skin tear went from my vagina towards my bum and sort of "past" it.
Birth is great eh!
Anyhow, they did some stitching but decided not to stitch that bit and "let it heal naturally". Without telling me. It did not heal well, but in a sort of lumpy line.
I didn't know what had happened as they hadn't said so I assumed at first I had some type of prolapse. I was sick with fear as I'm very sporty and thought perhaps I wouldn't be able to do high impact or heavy stuff anymore.
Eventually I went to see a women's health specialist, a physio in fact. It was about £100. She examined and explained that was she was seeing was scar tissue. As she wasn't a surgeon, she had no vested interest in persuading me to have surgery.
She explained cosmetic surgery could help in my case, but it could also make things worse. Essentially, messing with scar tissue carried a risk of making the scar weaker and liable to re-open, particularly as it's a part of the body that we use all the time. Because I am active, this risk might be increased for me.
I hate the way I look down there now. But that explanation helped me and made me comfortable to decide not to intervene further. I do not like how it looks, but it's cosmetic not functional, and also, it could be worse and could be stopping me being active, and that would be worse than anything.
So tldr 🤣 you can see a non-surgical professional fairly cheaply who may advise - surgery isn't a miracle cure - and if you do want surgery ask specifically about how it might impact on your lifestyle after, will there be restrictions on what you can do etc.