My working theory is largely developed from Face Book posts and conversations with a wide number of people in a bunch of different sports. So it probably has little, or maybe even no merit. But it's got my brain working. So maybe it will trigger some thought for you that will make sense; or help you think through your attitude in times or triumph or despair. (Let's be real - if you stick with a sport long enough - either showing or training you will likely get both ends of the spectrum!)
It seems that people who see their world in segments are less likely to be able to see the big picture and the value that can come from errors and mistakes, Their goals are tied to specific events and frustration with themselves and their partner builds with each failure to achieve whatever their goal is.
Each mistake or frustration leads to another and the cycle of stress and unhappiness continues to spiral down down down .. the flames get higher and higher and people give up. Either on themselves, the sport or their partner - all of which SUCK.
Big picture people get that a mistake is a chance to learn. A show is a place to test yourself. An imperfect partner is teaching you more than a perfect partner ever could.
and there you have it - random musings as I try to avoid thinking about the coming winter!