I started around 18 or 19. Lasted til late forties or early fifties. The beginning of the end came in late forties with a gradual (then swifter) decline over a few years. Possibly my last gasp was around age 51? Don't really recall the details, so I just round it off, and say I was a womanizer/playboy from 18 til late forties. A doctor once told me years ago that testosterone replacement therapy and Viagra would fix it, but I don't see anything needs fixing. Spent about three years learning to be a PUA, a good decade perfecting the skill of conning gals out of free pussy, then another ten+ years of easy pickens, but everything ends sooner or later. I much prefer being an introvert and recluse, to being an extrovert and cunthunter in the noise and hustle of the singles scene. Time to retire to MGTOW.