Is there any way that I can fix my brain? I've heard that the brain stops developing around 25, so I think I might still have a chance to turn myself around. I'm 19 and I jack off compulsively (like 4 times a day), watch porn, eat unhealthy, don't excersise, doing easy things, browsing 4chan, etc. and etc. I believe I might've fucked up my prefrontal cortex through these activities because my willpower is super low. Is there a chance for me to fix my brain?