Fear
For the Spirit God gave us does not make us timid, but gives us power, love and self-discipline. 2 Timothy 1:7 (NIV)
God created mankind in His image and likeness. He also gave mankind authority to exercise dominion over the creation He placed under our care. Although we do not possess the unlimited power of Almighty God, He does empower us for the purposes He gives us. As 2 Timothy 1:7 reminds us, the Spirit God gives us is not one of fear, but of power, love, and self-discipline. One thing we didn't inherit from God is fear. I don't know who originally created the abbreviation F.E.A.R. (False Evidence Appearing Real), but at times we can let our doubts, or doubts imposed on us by others convince us that the evidence is real.
To conquer the fear we must acknowledge the source of the fear. Is it a physical fear, or something that could actually cause you harm? Fear of standing outside in a lightning storm holding a metal pole would be a wise and healthy fear. Alternatively, it could be a mental fear of your own thoughts making you doubt yourself. If your fears are your own doubts I challenge you to faith your way through it. How? Trust God! Think back to a time when you managed to overcome your doubt or fear.
Trust in the Lord with all your heart and lean not on your own understanding; in all your ways submit to him, and he will make your paths straight. Proverbs 3:5-6 (NIV)