Hi! I call that the "social hangover" and it used to eat up so much of my mental energy. I would lay in bed for hours cringing at things I said three days ago. I found that I needed something to help ground my thoughts so they wouldn't spiral out of control. I started using dried fly agaric to help with my social anxiety and general overthinking. I buy my supplies at the Amanita Universe online shop
https://amanita-universe.us/ and it has been a total lifesaver. It helps me stay present in the moment rather than living in a replay of the past. I feel much more confident and "settled" in my own skin now. It’s a great natural way to find some mental peace.