I'm afraid I am not as disciplined as the Great Teacher, S, and suffer nervous anxiety, unfortunately more akin to Broken Brother Friedrich.
-Herr Hauser
I have a hunch that Schopenhauer ,mentally,suffered as intensely ,as Nietzsche, if not more.Any man who writes as he does, must have suffered a great deal of mental anguish.Sure, he had the money which Nietzsche did not have and did not suffer from an obvious physical malady unlike Nietzsche .
From biography by Cartwright- In an entry to his private diary,dating around 1833,Schopenhauer reflected critically on his character -He writes:Nature has done more than is necessary to isolate my heart,in that she endowed it with suspicion,sensitiveness , vehemence and pride in a measure that is hardly compatible with the mens aequa of a philosopher.
But after noting the conflict between his character and the equanimity of a philosopher,he notes an example of the terrible grip of anxiety,which he attributes to an inheritance from his father: Even as a six year old child,my parents,returning home one evening from a walk found me in the depths of despair since I suddenly imagined myself to be forever abandoned by them.
If one to gets to read his" private diary" ,I am quite sure, it would put Job to shame.
Take care.