ED at 19

Title says it all. I have sex pretty often and I mostly bottom because I can’t really stay hard during sex. I don’t think it’s psychological because I honestly have never really been stressed about it I just realized the other day that I’ve maybe had sex with around 20 different men but I’ve only actually orgasmed twice in the presence of another man.Masturbation typically takes me about an hour and a half and I typically will loose my erection if I loose focus for even a moment. I hadn’t really thought too much about all of this before but I’m realizing I literally might have ED. Anyone else have any similar experiences to me?