Self doubt is just as difficult, if not more, than recognizing it's there in the first place. A worthy goal causes you to doubt yourself and expand beyond yourself. So take a step, move in that direction, even if you don't know where you're going to get to,. But what i have found is when you take the step in faith and not knowing, life meets you at the next step. You take another step, life then meets you again, and life that meets you again.