I had a bad week struggling with OW thoughts and brought her up waaay too much, but I'm emerging from the hole. I think what helps is when I can pull myself out of the entire thing and focus on losing my own "selfishness."
I find when I'm selfish I focus too much on my lower emotions. Instead I try to lose that selfishness and focus on the "higher" more positive stuff. Like what do I want to learn? or what am I going to do in the garden?... things outside me. And also, just trying to be a loving, confident and more giving person.
Somehow that seems to help. I've found a lot is mindset and you have to keep it at a positive, clear, rational level.
I know there are times it's easier said than done and I 'm struggling sometimes too. But I think the more we overcome it and keep on a positive mindset the easier it will become in time.
Hang in there! You're not alone.
There is no arriving, ever. It is all a continual becoming.