Luke 10:19 Behold, I have given you authority to tread on serpents and scorpions, and over all the power of the enemy, and nothing shall hurt you.
God can and will deliver us, but we have to do our part. He has given us the power to speak His Words into existence here on earth, through Jesus. We do the speaking and believing, and the Holy Spirit enforces what we say. The power to bind and loose has been given to us. We speak, heaven hears and enforces our words.
Here is a prayer to speak aloud. I am in agreement with you.
In the name of Jesus, I decree and I declare my body and life to now be free of all bondages and captivities of the devil, and any and all negative words, declarations, and thoughts spoken over my body and life. All demonic presences and influences in my body are commanded to leave my body,now. I bless my body and life with the life of God. Thank you Jesus.
Proverbs 4:20-22 (KJV)
20 My son, attend to my words; incline thine ear unto my sayings.
21 Let them not depart from thine eyes; keep them in the midst of thine heart.
22 For they are life unto those that find them, and health to all their flesh.
Read the Bible, commit verses to memory, and speak them aloud every day. Psalm 91 is a great one to memorize and speak aloud each day.