If you set your goals ridiculously high and it's a failure, you will fail above everyone else's success.
Pick up a camera. Shoot something. No matter how small, no matter how cheesy, no matter whether your friends and your sister star in it. Put your name on it as director. Now you're a director. Everything after that you're just negotiating your budget and your fee.
But failure has to be an option in art and in exploration - because it's a leap of faith. And no important endeavor that required innovation was done without risk. You have to be willing to take those risks.