Sounds a lot like the guy who said I have 23 gold medals and have no idea what to do (Michael Phelps). Although it isn't a DSM recognized condition, psychologists often refer to the depression of people who obtain the pinnacle of success as “post-gold medal depression.” Here is an article about it. [0]

"What shall we ever do?" -- T.S. Eliot - The Wasteland

"What SHOULD we do?" -- Dr. Seuss - The Cat in the Hat

"What should we do?" -- Shakespeare - Hamlet

When I'm bored I like to read poetry.

[0] https://www.npr.org/sections/thetorch/2016/09/08/493111873/a...