I feel so defeated

i don’t know how to defeat this addiction, i see everyone’s comments and they say to just distract yourself and you’ll be okay. I have tried everything in the book, i’ve downloaded porn blockers, i’ve gotten rid of search browsers, tried to distract myself. but as soon as i go to lay down late at night, that urge comes back. i guess my whole point in this post is, what do you guys recommend when that urge comes late at night, and there isn’t a way to distract myself, what do i do?