The example of Moses, waiting on the Lord and never giving in is an amazing testimony to how God works through the people he chooses, despite their lack of confidence or even perceived ability. Moses had:
Courage to wait well - what long term promise is still taking shape in your life? Take Courage!
Courage in imperfection - What excuses have you been bringing before God? Time to do it afraid!
Courage through Communion with God - Carve out time and cultivate moments with Jesus. Find a tent!
Courage from Godly friends - Cultivate good friends. Who in your world is that person who would hold up your hand in a battle?