>>33826060 (OP)
Masturbate less. If you get to the point where you need to cum so badly it hurts, you will not have any problems staying hard.
Condoms obviously are not a fun thing, but they're a *necessary* thing. Complaining about them is like complaining about having to brush your teeth: nobody *enjoys* brushing their teeth, but if you don't do it, you will cause major problems for yourself. Suck it up.