How do I get fully hard and stay that way?

I don't think lowering his testosterone will help.

This is the truth

tourniquet and liquid nitrogen

Stop being gay

Wait what? I never exercised, all I do is edging, making the fapping the goal, not the orgasm
Cum fast and then move on watching stuff that turns you even more on

Replace penis with broom handle

100%
I was a big fat so and when I tried putting it into some chick, it was all bendy like a snake. I worked out for a year, ate better (less salt) and now I could derail a train with my hard ding-dong.

do you masturbate?

Actual women and not traps/trannies.

define big fatso i was 310lbs now 273lbs tbh just looking to lose the fat around my dick so its at least average size