I have been reading a book called Leadership Lessons From A Chef by Charles Carroll how is actually a real chef. The book is very good and give good pointers on how to run a kitchen and be successful in the process. I've gotten some good pointers out of it like how not to carry around stress because it can wear you out in the long run, find something to do in your down time like go to a gym or find a hobby stay active, when you have alone time find a quite room and meditate to relive the stress that has been built up.