I don't know that I've completely mastered it, but I DO know I'm far better at it now than I was once upon a time. Here are a few tips for holding onto your sanity when you're making a scary choice and going for it.
1- Don't listen to the naysayers. Even when they are those closest to you. Thank them for their input if you want to preserve the relationship, and then let it go. Don't try to defend your position with someone who doesn't get it or will never be on board with your leap.
2- When you are being bold it scares people. Try to remember that their reaction has nothing to do with you and everything to do with them.
3- Cut yourself some slack. As the owner you are going to be responsible for everything to begin with... undoubtedly there will be a learning curve and while you try to get it all done, things will invariably fall through the cracks. It is going to happen. It won't be the end of the world.
4. Surround yourself as much as you can with people who cheer you on and challenge you to soar even higher. We have enough of a 'oh my god what have I just done' script running through our heads. We need those who are willing to leap with us! Especially for those days when we aren't so sure...
What are YOUR tips for moving through uncertainty?