Jesus told the story of a man who prepared a banquet and invited many guests. So the host of the banquet said, '. . . At that very moment, you either make a commitment or you make an excuse.
Fear usually comes dressed up as an excuse.
Every time you pull back from a God-given opportunity because of fear, you lay one more brick in the wall that will ultimately keep you from reaching your life's goal. If God's told you to do something, just take His hand and start moving forward. You can't control the wind, but by His grace you can adjust your sails to take you where you need to go.