Choose creation and let go of the attachment to how it might hypothetically unfold; just let it unfold. When we are immersed in the moments of creating, and not concerned with the outcome, that is mindfulness.
One wonderful thing about staying in the discomfort zone is the chance to explore who we think we are. Instead of running on autopilot, being uncomfortable in a new situation allows us to question self-imposed beliefs and limits.
Fear is momentary; regrets are forever. The reality is that fears that paralyze us today will be long forgotten tomorrow, and we'll be left with the after-effects of opting for safety -- life unexperienced, progress unmade, a truckful of regret.