Series work is just grueling.
While there's time left, I want to do different kinds of things.
I've cheated myself: there are other things I could have done to fill out the bouquet of my career.
I'm not ready for another series. I have fun doing other kinds of things.
Attitude is everything. It motivates action, which increases productivity and improves morale, which perpetuates a positive attitude.
A healthy outside starts from the inside.