I did exposure work with my therapist specifically with regards to going for groceries. I won't list off all the troubled thinking only that it was both scary and excruciating to go.

I was going in the middle of the night. Working with my therapist we made up all those lists I mentioned and I could not ignore that: going in the middle of the night was a disadantage as it was more dangerous, I benefited in no way from the worry. When it came to catastrophic thinking we did work that allowed me to believe in the conclusion that the worst case scenarios wouldn't likely happen. We also worked on my self worth and that I probably wasn't being stared at, etc.

gradually, she had me do my shopping later and later and more and more often through the week.

I still have troubles though - like when I don't recognize any of my usual cashiers. But things are soooooo very much easier.