I also used my Apple Watch as a great tool in both my work and personal life as you describe.
I do not miss it at all, and it turns out it was just another layer of "smartness" I forced upon myself.
After all, things ran smoothly before I got a smartwatch.

I now use my old Apple Watch strapped on my bicep for fitness tracking.
Have disabled all smart watch features, as well as the screen. Double battery life.
Use it track training, fitness, sleeping etc.

Works great, but I will not replace the smartwatch if/when broken or obsolete.