Paralysis through fear of failure is so widespread in our community that there is actually a medical name for it - Atychiphobia. While for a small percentage of the population, this is probably a very real condition that needs therapy, the problem with making it into a medical condition is that it gives many more an excuse for not moving on.
If you research the number of daily searches on keywords in Google, you will see ten times the number of searches for information on diseases as there are for cures for those diseases. People get their feeling of importance for having a medical condition and find out everything there is about that condition so they can relay that to their friends - that is everything except how it may be cured.
I think nothing would be more of a tragedy than the realization in your twilight years that you had forgot to live life - that you had been so paralized by the fear of failing that you had not tried anything
'In the end, it's not the years in your life that count. It's the life in your years'-- Abraham Lincoln
'Live as if your were to die tomorrow. Learn as if you were to live forever'-- Gandhiji