I got circumcised, not for medical reasons but because I was in a relationship with a Jewish girl and wanted to surprise her. It worked - we're now engaged
. Though I'm now into NoFap/No orgasm, I masturbated and had sex with my girlfriend lots of times between getting circumcised and giving up cumming.
Circumcision does change things. At first your glans feels hyper-sensitive so you can be a bit uncomfortable in your pants. The glans dries out and rubbing against your underwear (and masturbating etc) make the skin get tougher, so it ends up a lot less sensitive than when first exposed or when you had a foreskin.
Having a less sensitive penis sounds like a tragedy but in fact it's the best thing ever. It's hugely easier to delay climaxing, or to stop yourself doing it altogether. You'll find your girlfriend climaxes a lot more. It's also a lot more hygienic and nicer for her (more sex/blowjobs?).
So don't be afraid, getting circumcised is great. In some countries and cultures it's done almost automatically. I read it's the world's oldest medical procedure, and also the most popular (about 30% of the world's male population has had it done).
If you do some research you'll find there are options about how much skin is removed (loose vs tight), where the scar line goes (low means near the glans, high means further back) and whether or not your frenulum is removed (I'm guessing yours already has been). When I looked into it I came to the conclusion that low and tight with the frenulum removed was best. Obviously I can't compare with other styles, just with being uncircumcised, but I'd say the result I got is very good, and I'm glad I had it done.