Knowing the crazy amount of effort you put into something and later on, you don't get the results you were expecting has to be on the list of one of the most frustrating and infuriating things to ever happen to a person.
I had always been an extremely competitive person, right from my primary and secondary days.
Every competition I signed up for, I would always put in all my energy and effort in making sure I came out tops and when I didn't, I would cry myself to sleep and there would be no amount of comfort that would make me feel any less like a failure.
A perfect example of this was when I competed in an inter-school spelling bee competition in SS2.
I had prepared for months prior to the event. I wouldn't sleep, eat or even take a shower until I had memorized the spellings of every word I had in my quota for each day.