>>29344418
>>29344438
If you had sex with an older man and enjoyed it, you enjoyed it. It is what it is. It sounds like the "post nut regret" is actually you being scared of accepting that you actually like being, in your own words "fucked by an older man" you might not even be TS at all, though you could be. But straight guys don't enjoy getting fucked by older men, that's strictly a gay or bi thing.
If you want my advice, try not jerking off for a couple days and then start paying attention to what you're fantasizing about. If you start fantasizing about getting pounded, I think you have your answer.