You put on the full Armour of God by following His Word in every day life. This following prayer outline I found may help you
David Skeba's book The Armour of God: Winning the Invisible War)
The belt of truth: Thank you, my Lord, for showing me the
truth about yourself. Thank you for reminding me that You are the only God, the Creator of heaven and earth, the King of the universe, my Father who loves me, and my Shepherd who leads me. You are my wisdom, my counselor, my hope, and my strength. You are everything I need each day.
The breastplate of righteousness: Thank you for showing me the truth about myself--that on my own I could never be good enough to live in your presence. Thank you for taking
my sins to the cross and offering me
your righteous life. Lord, show me any sin that I need to confess right now, so that nothing will hinder me from being filled to overflowing with your Spirit. [Take time for confession] Thank you for forgiving me and for filling me with your
righteous life.
The sandals of peace:Thank you for the
peace you give me when I trust and follow you. Show me how to help others find that peace.
The shield of faith: Thank you for helping me have
faith in you. I choose to count on everything you have shown me about yourself--and everything you have promised me in your Word.
The helmet of salvation: Thank you for promising me
salvation both for today's battles and for all eternity.
The sword of the spirit, the Word of God: Thank you for the scriptures you have given me to memorize. Please show me which one(s) you want me to use to cut through deceptions and gain your victory in any battle I may face today.
Pray these prayers in your own words and just mean it. You know that God answers prayer that is in His will. He wants you to wear the full Armour.
If you know the Scripture and live by it, you will be able to cut down Satan's attacks and cut through your sinful mind. Just believe in the facts you know through Scripture.
If you believe they are true cutting down Satan's attacks will become second nature after practice, although it will take time to get a hold of.
Hope this helps at least a little bit.
Your brother in Christ,
Tyler
GBU