You need to pull out and slow down, etc, when you're getting close but don't do it in a way that it looks like you're trying to avoid cumming. Don't say you're pulling out because you're going to cum. That's a turn off. Make it about teasing her instead. Pull out and eat her pussy ravenously, like you had no choice. Like it was calling to you. Get her to beg you to put it back in.
In terms of building up long-term stamina, I think exercise is honestly your best bet. Get fit and you'll have more control, plus you'll be more confident because you look good.
Failing that, certain drugs (even in low concentrations) obviously can preform miracles.
...
In terms of dating, yeah, dating sucks. Can't help you there. I don't play games. I'm just myself. If people like me, that's great. If not, fuck 'em.
I used to have high levels of social anxiety but since I started living by this code, my anxiety has all but vanished.
Social anxiety (mostly), I think, revolves around being hyper self-aware. It did for me, anyway.
I was anxious because I was thinking about what to say or how to act or who I should be.
It's exhausting trying to ad-lib a likeable personality, to the extent that it's downright impossible to sustain.
Your own personality is always going to be more likeable than any fancy costume you design for yourself.
If you are just yourself, there is no performance.
You cannot not be yourself.
Accept who you are.
There is nothing to be anxious about.