In life, both faith and fear will arise within you, and you choose which one will prevail. Someone once wrote,
Two natures beat within my breast,
The one is foul, the other blessed.
The one I love, the other I hate;
The one I feed will dominate.
The thing is, both of those emotions will always be present in you. The emotion you continually feed is the one that will dominate your life. You can't expect fear simply to disappear. If you continually focus on your fears, entertain them, and give in to them, they will increase. The way to ultimately overcome them is to starve them. Don't give your fears any of your time or energy. Don't feed them with gossip or negative news shows or frightening movies. Focus on your faith and feed it. The more energy and time you give it, the stronger it becomes. And anytime you feel afraid of doing something but go ahead and do it anyway, you will be reprogramming your attitude. When you feel fear, it will mean "go" instead of "stop," and "fight harder" instead of "give up."
[Eleanor Roosevelt] once wrote, "You gain strength, courage and confidence by every experience in which you really stop to look fear in the face. You are able to say to yourself, 'I lived through this horror. I can take the next thing that comes along.' You must do the thing you think you cannot do."
That is what overcoming fear may be to you -- doing what you think you can't.
From The Difference Maker by John C. Maxwell, pages 142-144