atychiphobia, fear of failure is a phobia characterised by the inability to attempt any goal that is not a guaranteed success. While your the comfort zone might feel safe and secure, the fear of failing can be paralysing.
In general, you may be more likely to develop atychiphobia if: you have past experiences where you've failed, especially if the experiences were traumatic or had important consequences, like missing out on an important job. you've learned to fear failing through different situations. you're a perfectionist.