I'm a recovering addict and sex addict. My best advice is to see what's actually fueling it. For me, there was a ton of unresolved trauma and emotional damage from my childhood. After therapy, a ton of personal improvement, and a 12 step program for both.. I've been sober for 2 1/2 years and abstainent for 1 1/2 years. If there's nothing underneath the surface, it might be a hormone thing. There's also a religious aspect where masterbation is perceived as "bad". That's between you and God. You also have a right to do what's natural without feeling shameful for it. But.. If it's impacting you in a negative way for long enough, you will find a way through it.