I'm guessing OP overloaded his system and burned it out from abuse early on. "All things in moderation"
i know what you mean.not as hard as i used to be,and loved the anticipation of a wank.nearly have to force myself now.still do!
For me, it's the urge to masturbate to completion that I don't get nearly as often as I used to when I was younger. The hardness of my erection is just about all I can be proud of at this point, lol.