Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom. 2 Corinthians 3:17 (NASB)
Brood on 2 Corinthians 3:17 by praying in the Spirit while holding that Bible verse in mind.
Also, repeat these meditatively throughout the day:
I HAVE THE HOLY SPIRIT. I AM FREE FROM THE POWER OF DARKNESS. THE SPIRIT OF LIBERTY FINDS EXPRESSION THROUGH ME.