Fighting the addiction to escorts while engaged

Im recently engaged to my fiance and I love her more than anything. I have never cheated on her. However, I used to have a heavy addiction to escorts and porn and whenever I am away from home, the thought starts coming to my mind and I end up looking at escort sites. I have never actioned this as I know its wrong and I don't want it, but its a compulsive behaviour. It gets to the point where at times, I actually message the girls, but I never action anything and I just jerk off and feel disgusted with myself afterwards.

How do I rewire my brain to not think these thoughts? And any tips? Thank you all, I'm really struggling with this one. And sorry if this doesn't belong in this sub.