James 4:7 Submit yourselves therefore to God. Resist the devil, and he will flee from you.
Satan will flee-that is get so scared he runs. Satanic warfare is not so difficult. The secret is not to do something in your own power but to submit, obey, surrender to, seek, God. When you do you can take the next step which is resisting the devil. Then you can be assured that he will flee.
How do we submit ourselves to God? The battle starts in the mind and the heart so bring every thought into subjection to Him. Think and pray, will this thought bring honor to Him? Am I thinking what He wants me to think? Do I have the right attitude about this matter?
When you submit your thought life to God then you will be able to take the next step which is telling the devil that you are now thinking God thoughts and obeying God. When Satan knows he has lost the battle in your mind because you are focused on the Lord he will flee.