why? one of the ways is to breathe in and out,..
I like that he wasn't trying to be some stoic Chess god. He made me think of kids when they're focused into something that's special to them and the unexpected happens; their plans turn different then expected, if it's a contest they might lose, but instead of lashing out at their opponent or the officals it's more involving when their emotions are expressed to the situation of the event and the desire to attain the goal.
3. Draw from past experiences, draw from life experiences,draw from game experiences,draw from experience experiences.Whatever source that you can go to that helps you don't discount it. Chess might be presenting you an opportunity to practice a unique quality that only you have.