Welcome, but I don't like to wish "good luck" because I don't think it is a matter of luck (not being critical to anyone using that euphemism). I think it takes true action to defeat this; not just wishing, not hoping something will change, not locking oneself up in isolation, but real action to make changes in the outward behavior, the porn use, the masturbation or whatever the issue is, but also action to dig down deep and truly try to understand what is behind and beneath the PMO behavior, the "why" that we choose PMO or some sexual compulsion to ease pain, comfort hurt, self-medicate and self-soothe. It is understanding that where we can make real changes to make our lives better. That is hard work, but we are each capable of it. And a key to that is understanding that you cannot do this alone with sheer willpower, but through connection and honesty with at least one other human in your life. That can be a therapist, a best friend/close confidante, trusted family member, support group (such as the weekly NoFap groups thru here or organizations like SAA, etc.). You can do this and I leave you with my best wishes for a successful journey.