I once read a passage from the British Air Force general Aurthor Harris about what it meant to be an Air commander in the second world war. After I read it, I never forgot it. Harris wrote:

I wonder if the mental strain of commanding a large air force in war can ever be realized except by the very few who have experienced it. While a naval commander may be at the most be required to conduct a major action once or twice in the whole course of the war and then an army commander is engaged in one battle say once in six months or in exceptional circumstances as often as once a month. The commander of a bomber force has to commit the whole of it every twenty four hours.

It is best to leave to the imagination what such a daily strain amounts to when continued over a period of years.