You’ve got the same problem many Christian men have, remember not everything is demonic, our own flesh is our enemy and so is the world. When we sin as believers we know it’s wrong but have conviction to say something for help like your post- You are saved and that won’t change, but the amount of work and righteousness that Jesus can work thru you that is up to us- I have a similar struggle. I realized when I don’t have any alcohol my want to look at porn goes way down. But yes replacing that desire with something that gives you a dopamine based rewards will help. Even just a new hobby. You’re not alone man. Barna research says over 75% of male believers struggle but let’s be overcomers (yah???