But when you ask, you must believe. You must not doubt. That's because a person who doubts is like a wave of the sea. The wind blows and tosses them around. James 1:6 NIV
When you ask God to do something special in your life, stand firm and believe that he will do it. Don't let the wind of doubt and unbelief toss you around. If it's in his word, then that settles it. Don't let the circumstances interfere with your faith in the God. He is the God of the impossible.