Now, the only thing that will make a difference is action. Everyone has had the experience of failing to do something they wanted to do. Perhaps by the time you got yourself “ready” to do something, someone else had taken action—and now you're regretting it. Failure comes in many forms; it occurs whether you act or not. Regardless of the outcome, I would say that it's far preferable to fail while doing something than to fail by over-preparing while someone else walks up and scoops up your dreams.