Systematically destroy the lethal effects of doubt. The scriptures uses different words for it to grab ahold of your attention. Wavering, double minded, faithlessness. These words are used in terms that show, that it must be removed in order to maintain our healthy relationship with the Lord. ( that’s a word for some, your health would line up if doubt were dealt with.) Doubt is a spirit like fear, grief and deception. When it approaches the word Of God that you confess, speak to doubt. Command it to leave, and declare I am full of faith. I believe the word in this situation only.
James 1:5-8
5 Now if any of you lacks wisdom, he should ask God, who gives generously to all without finding fault, and it will be given to him. 6 But he must ask in faith, without doubting, because he who doubts is like a wave of the sea, blown and tossed by the wind. 7 That man should not expect to receive anything from the Lord. 8 He is a double-minded man, unstable in all his ways.
Just remember to know the will of God about what your praying for. He said He would graciously give it to you.