Wiktionary
n. (context rare English) The fear of failure.
Wikipedia
Atychiphobia is the abnormal, unwarranted, and persistent fear of failure, a type of specific phobia. As with many phobias, atychiphobia often leads to a constricted lifestyle, and is particularly devastating for its effects on a person’s willingness to attempt certain activities. The term atychiphobia comes from the Greek phóbos, meaning "fear" or "morbid fear" and atyches meaning "unfortunate".
Persons afflicted with atychiphobia considers the possibility of failure so intense that they choose not to take the risk. Often these persons will subconsciously undermine their own efforts so that they no longer have to continue to try. 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.
By definition, the anxiety of any particular phobia is understood to be disproportionate to reality, and the victim is typically aware that the fear is irrational, making the problem a largely subconscious one. For this reason there are no simple treatments for atychiphobia, however there are several options available.