Fear of failure
It only has to work once.
It is not about the number of attempts! Failure is what enables learning.
As a 10 month old baby, you probably fell down every time you tried to stand. But it was that one time when you finally stood, that it finally worked!
Failure is but an attempt to make it work. Focus on making it work; not on the failure.
The fear of living with the memory of failure is the single greatest motivator for success.
It is about that one time when it has to finally work. And when it works, all those failed attempts and the struggles they caused will quickly be forgotten.