Last spring, I broke my ankle severely (trimalleolar fracture with dislocation). I had a very long string of complications following that: fracture blisters, nerve block rebound pain, opioid withdrawal, atrophy, infections, nerve pain, bone fragments, etc. It seems that right when things seem to start going well, a new complication arises.
I know it's not rational, but it's really hard to not fall into a mindset of "Why even try to fix this one, another one's going to happen anyway?" And once I start letting myself believe that, I just feel even worse.
Even before this happened, I have had a pet theory that agency (and perceived agency) is one of the most central components of psychology around anxiety and depression. This whole experience has reinforced it.
https://en.wikipedia.org/wiki/Learned_helplessness