Hoe do I stop watching porn

Hello. I have a bad porn addiction that started years ago as a way to reduce stress and forget about my trauma. Years laters im over my trauma but my porn addiction has stayed and I feel like I can't even end the day without masterbating. I have tried hentai and other things, but everything just gets to boring for me. I have a horrible imagination and bad adhd. I have a wife but no matter how much we have sex I still want to masterbate. I really want to stop to better my relationship with my wife, but I don't know what else to try.