Because there's nothing special about failing, II
There are three stages in the realization of failure:
First, to not realize one has failed, to be blind to it and to think of oneself, by the standards that are important, as a success.
Second, to realize one has failed and think that failure makes one uniquely tragic. This is the stage of dramatic self-pity, the stage of Oedipus when he gouges out his eyes.
Third, to realize one has failed, that failure is commonplace and that, really, there's nothing special about failing.