^You *can* have success without failure.
Go through all of the failures in your mind and on paper (or computer), brainstorm with other people and make plans for all failures you can *possibly* think of.
Pressed for time or impatience, most of us don't have that luxury – and no matter how much you plan, there are always things you can't plan for. But rather than giving up on brainstorming altogether (because we can't think of EVERY possibility) – instead DO WHAT YOU CAN and then boldly step forward and take that leap of faith… the faith that you've crossed every t and dotted every i – and faith in God or happenstance or probabilities that you will succeed, not despite all of the unknowns, but because you have planned for as many unknowns as you could. -Ken^