We often see in the Bible that when God sends His servants out to do something, He commands them to be Strong and have good courage.   We do not belong to this world, and many forces will try to take us down.   But we need to put on our big girl pants, as a friend of mine says, and forge forward in the strength of God.  

“Be strong and of good courage, do not fear nor be afraid of them; for the Lord your God, He is the One who goes with you. He will not leave you nor forsake you.”  Deut 31:6