1. OP is a bait. No one would be fine not coming since years and then not even ending that in a freak, once-in-a-lifetime unplanned opportunity but as a preplanned decision - and feel bad about it. Either it's worth it or OP wouldn't do anything.
2. Semen retention crowd on /x/ is twisted and what was initially a care for moderation and reminder to pursue greater things rather than cheap dopamine hits, became - ironically enough - a circlejerk for spiritually and socially stunted people like
>>41035292 to feel superior and delude themselves that the secret to greatness is merely a cheat of not stroking their penis, because it's easy compared to actual effort of lifelong practice and facing uncomfortable truths to refine one's own character and spirit. As
>>41035296 said, semen retention is just part of practice regiment in some traditions and anyone claiming that it by itself will give you spiritual authority is deluding themselves or lying to you.
3. Porn, masturbation etc is like other light recreational drugs, alcohol, tobacco. It primarily depends on the person - while not particularly healthy on average, the experience and other effects may be valuable, just often not as valuable as more demanding alternatives. It's the moderation, motivation, approach and reasoning of the person that matters. A glass of fine wine or whiskey every so often may brighten your mood and liven you up, but getting addicted and shitfaced regularly - won't.
Stop being retarded about it. It seems like far too many people lost healthy perspective toward such things.