You’ve heard the expression “mind over matter." Facing your fear is often a matter of simply making a decision to change it. This fear was born in your mind and it grew because you fed it more fear.
If you've convinced yourself that an irrational fear is real, you can do the same in reverse. Many fears we have are those we’ve created for ourselves. The moment something causes you to become fearful, stop that thought in its tracks and turn it into something positive instead.