About stress: how's your HRV? Look into sympathetic and parasympathetic nervous system, vagus nerve and it's relation to HRV. It gives you a more objective way to measure stress.
In particular, Garmin smartwatches have a very good measurement and intepretation with their "stress" and "body battery" features.
It's low when I've got a job, or need a job. Double, when I don't. I have years of data on this.
I initially thought about sharing this about stress and didn't, but then I read your post.
That's how I learned I was stressed while working. I have a Garmin watch and everyday I get an alert telling me I had a stressful day.
During the day if I do a little check-in where I observe how I feel, I often notice a lot of muscle tension, especially in the plexus area, and that I stop breathing for extended periods of time. I try to consciously relax, which would work for a few minutes before the tension comes again. I end up being exhausted almost everyday. My watch has been telling me I'm either in "recovery" or "strained" for months.
Stress can be difficult to notice, especially when you're stressed.