It often seems that the initial obstacle of actually convincing ourselves to pursue an idea proves to be the most challenging step of the process. Once we make that decision, we quickly discover that what we once thought was impossible is really quite achievable. Yet despite the number of times I’ve made this realization, I still find myself unable or unwilling to act upon an idea because of a fear of failure.

And I agree with the comments above, persistence and dedication are much more of a factor than prior experience or actual skill when it comes to turning ideas into reality.