Orgasming kinda?

So a lot of us on this site are having sex. Some however are not 😭 anyway I’ll be super turned on a start touching myself and after a while it feels like it’s twitching, or something down there. However people describe an orgasm as amazing, it feels good but I’m not sure if I’ve ever really finished, or at least came hard. I get like 90% there or is this just normal?