Stuffing down your fear never works. It will simply re-surface later, in full force.
Author Elizabeth Gilbert is one of my creative heroes. She talks about how fear is allowed to have a seat in the car, but it's not allowed to drive.
One of her readers, Charlotte Murphy, teaches art to fifth graders. Her students suggested they make a Fear Chair, where fear is allowed to sit, but not allowed to run the creative process.
P.S. Aren't kids the most amazing creatures?