This is where I think the saying "Just do it" stems from.
For me, it has been dealing with letting go of the perfect story that I am trying to make. Every decision is a risk to it, because it could fuck up, but so far behind every decision has been joy, freedom, and a great benefit, plus release. In addition, much of the bad turnouts have been workable with or no big deals at all.
It is really just a process of gathering courage and going for it. For me, at least.
Edit:
This website really sums up what I am saying and does more. Wish I could apply all of it.
Fear and Indecision: Joy Killers
God, even looking at this image is frightening for me. I'm so afraid of decision making.