Less time at the board means more time at the bar.
But seriously. If you blunder, then the game most likely has a forgone conclusion in which no one can do anything about. The worse thing is you have a win in front of you and everyone else sees it but you.
Remember, it's still a game.
Even strong players blunder and occassionally lose really bad, like in a miniature.
Or they suffer embarrassment like Anna Ushenina did when she failed to checkmate Olga Girya with KNB against K.
(If you haven't seen it look it up on YouTube: Ushenina checkmate fail.)
How do you go on after a bad loss or a great embarrassment like this?
How can you go out there for the next round one day later and still play your best chess, as if nothing had ever happend?
I once played a blitz game against a strong WIM. During the game she blundered a queen for a pawn with no compensation. I had about 40 sec remaining on the clock and she about 20 sec. I went on to lose the game on time, can you believe that?
What really impressed me was how calm and cool she stayed after her blunder.
She didn't flinch, didn't pause for even a fraction of a second, showed no emotional response whatsoever. Just played on as if nothing had happened. Not objectively good moves, even allowing me to trade off the remaining material. But she was quick enough to make me lose on time.
When she had blundered her queen I was probably more shocked than she was.
If I just blundered my queen against a guy rated about 400 elo below me, I would be anything but calm. It would take me a long time to recover. I would likely still be under shock by the start of the next round.
So how could this WIM remain so calm? How could she simply play on as if nothing extraordinary had happened?
In his book "Buch des Opfers" (= Book of sacrifice) Vladimir Vukovic mentions something he calls "Opferschock" (= sacrifice shock) and talks a little about the psychology of sacrifices in chess. I think that this is somewhat similar to what I am talking about here.
I feel that this is a question worth investigating! We are humans and emotions play a large role in whatever we do.
What makes masters stronger than the average club player like me is not only more knowledge (openings, endgames, tactical patterns, strategical ideas, etc) and not only the ability to calculate more deeply, more quickly and more efficiently; not just a better board vision. It is also psychological aspects such as this.
I know how to learn openings and endgames, how to work on my tactical strength and even calculation skills. My coach is helping me get better at strategy.
But how can I improve in the psychological aspects?
Thanks for reading all this! Your input is most welcome!