Courage, a word often used but seldom lived. Webster's 1828 dictionary defines courage as:
"Bravery; intrepidity; that quality of mind which enables men to encounter danger and difficulties with firmness, or without fear or depression of spirits; valor; boldness; resolution. It is a constituent part of fortitude; but fortitude implies patience to bear continued suffering."
In the 1st chapter of the book of Joshua God tells Joshua to be strong and of good Courage 4 different times (Joshua1:6, 7, 9, 18) , and two of those times he uses the phrase, only be strong and have courage (Joshua 1:7, 18).
We all have purposes in life and though to you, yours may not seem as important as Joshua's, to God no one of us or our purpose is anymore important than the other. But one thing remains true, whatever God has called you to do, he has put within you the gift and ability to do it, but you must have Faith in God and the COURAGE to step out on that Faith and do it.