Learning is a life-long process, and it is never a simple journey from A to B to C -- it's a zigzag journey, and often requires several false starts. Indeed, making mistakes -- and learning from them -- is crucial for our sense of growth.
As you contemplate making a change, I invite you to find one or more people who will wholeheartedly be on your side. Then tell them what you are up to, and ask (out loud!) if they will help you through any rough spots.
Effort is really the key component of the cycle of success, because even if you are inspired, motivated, or determined, you will not succeed if you don't put in the effort. Effort is the last step of the cycle before accomplishment.