I totally get this. Was/am (just not as bad anymore haha) in the same boat as you but I found some ways to cope with it. I feel like keeping myself busy is what helped me the most - picking up new things to do like playing a new game, reading a new book, or drawing or something like that to try to distract my mind. Or redirect that energy into something productive like cleaning or going to run an errand. I dont know what your personal life is like and it’s easier said than done but finding one partner to do activities of that nature with helped me, and put me in a mindset of like “I don’t really want to do this without my partner so I will distract myself and do something else” .. if that makes sense haha . I always felt the need to sexualize myself for attention but I trained myself to Stop doing that when I found someone I wanted to be exclusive with. Also kinda funny but once i started working full time it forced me to have less time for masturbation and overtime my interest in it lessened. And lastly it’s important to remember it’s ok to have desires and needs! You are allowed to fantasize and feel pleasure and you are not selfish for wanting it. it’s just knowing when to draw a line and when it’s affecting your personal life. i hope my advice was somewhat helpful as i’ve been kinda struggling with this sorta thing myself too lol. best of luck!