I don't know if it could help for you, but I can sometimes successfully deal with that kind of anxiety by examining "what's the worst that could happen" and try to see that either that's out of my control or it's not that bad, or at least it's not any worse than what I'm already dealing with. That last one has gotten me through a lot of the little insults of becoming D'd. In the ocean of My Husband is Leaving Me, one night out or one nasty remark is not worth getting into a spin over. And I'm getting through My Husband is Leaving Me fairly intact so I know I'll be ok.
I hope this or something helps. Surrendering to anxiety seems to be so counterproductive to any of your goals.
Adinva 51, S20, S18 M24 total 6/15/11-12/1/12 From IDLY to H moving out 9/15/15-3/7/17 From negotiating SA to final D at age 50 5/8/17-now: New relationship with an old friend __ Happiness is a warm puppy.