"..that there is no disharmony, no imperfection; that all is complete and whole..."

[Adonai One]

I have never claimed it is possible for others to exert too much effort. I have claimed it is possible to exert so much effort that you are constantly fatigued and depressed.

I will claim it is unwise to allow yourself to become unable to do work. It's funner to do otherwise in most cases. Unless you enjoy fatigue, then perhaps it is wise for somebody to pursue fatigue. Although I doubt that is the intent and joy of most people.

What do you mean "unable to do work", do you mean physical work?

Any type of choice-making.