How to restore this gel coat

I purchased this 1990 champion 168 for 500$ to keep at a camp, but it was oxidized badly so after some YouTube watches, I wet sanded with 600-3000 grit, then compounded with miguires 100 followed by miguires 9 polish and a liquid wax but I just can’t get it to shine. I’m worried the wet sanding went too deep and damaged the metal flake, wondering what can be done, would love to have showroom finish but again it’s just a camp boat. Thank you!