It's frightening how accurate this describes my situation as well. Went 3+ years working at a startup where essentially we were one giant family, everyone hung out after work, and I rarely had time to myself. Everything technical was super easy to digest, I was exercising every other day, and I was on top of my game.
Now most of my days are spent working from home, and the only human interaction are the cashiers at the grocery store. I'm tired all the time, focusing is difficult for me now, and I feel like I've become slower with anything that requires mental effort.
What's the solution here? Don't work from home? Hang out more?