People suffering from atychiphobia are afraid of... failure. It really sounds strange, as nobody likes to fail and everyone is afraid of misfortune. But atychiphobia is the abnormal, unwarranted, and persistent fear. Atychiphobics never take risks! They always try to give up as soon a possible.

Because effort is proportionate to the achievement of personal goals and fulfillment, this unwillingness to try, that arises from the perceived inequality between the possibilities of success and failure, holds the atychiphobic back from a life of meaning and the realization of potential. It disturbs the social activity of such people and prevent them from trying any new things, which is very annoying, but they jut can't do anything about it.

More Info: en.wikipedia.org