One of the reasons I left my full-time job last spring was to rebalance my brain power.
I was in a job that was too draining, physically, mentally and emotionally. I wrote down a quote (can’t remember where I saw or heard it) that said:
“We have a finite amount of fuel to sustain/propel us—how do we spend our energy? If this is more important to me, what I can do to make it happen?”