John 4:50

Whatever you ask for in prayer, believe.

When you are confronted with a matter that requires immediate prayer, pray until you believe God—until with wholehearted sincerity you can thank Him for the answer. If you do not see the external answer immediately, do not pray for it in such a way that it is evident you are not definitely believing God for it. This type of prayer will be a hindrance instead of a help to you. And when you are finished praying, you will find that your faith has been weakened or has entirely gone. The urgency you felt to offer this kind of prayer is clearly from self and Satan. It may not be wrong to mention the matter to the Lord again, if He is keeping you waiting for His answer, but be sure to do so in a way that shows your faith.