For me, personally, when I'm afraid of something - when you're afraid of something, normally you try to go away, you try to avoid it. Instead of avoiding it, to overcome your fear, I believe you need to embrace it.
I try to protect my loved ones, the people I share my life with, because they don't have a public life like me. I want to keep their lives private out of respect for them.
I've come up with my own cure for a closed mind: try it once, and see.
The goal is to avoid mediocrity by being prepared to try something and either failing miserably or triumphing grandly.
Before each one of my fights, I make a point of saluting my opponent. I salute the other fighter out of respect, even though he is trying to take something from me.