except for those with outsized personalities -- think tom ford, miuccia prada, karl lagerfeld, etc -- the world of fashion remains quite a taxing one.
Yes, although, I think even Tom Ford has been known to struggle?
There is an artist's temperament within Ford, too - he just does a very good job of concealing it with all the showmanship!
I think what you need to be, to be able to survive, is slightly cold and you also need to have the ability to detach completely?
That's what Karl has, IMO. Despite his virtual omnipotence in the fashion world, he still almost seems to be a perpetual observer of fashion, looking in; rather than allowing himself to be engulfed by it.
Even more than Karl, I think Miuccia Prada is very analytical and almost scientific about the whole thing - you get the feeling she almost concocts fashion in a test tube, rather than throwing herself and her emotions into the maelstrom.
Karl and Miuccia's antithesis would be YSL - who lived and breathed fashion and who was, regularly, consumed by it.