Start making the Stations of the Cross as often as you can. This can be done in a church, an outdoor Stations of the Cross, or on-line. If you can do it at 3 PM, so much the better.
If you get up in the middle of the night to go to the bathroom, say the Divine Praises and the Anima Christi before going back to sleep. If you can do this at 3 AM, so much the better.
If you can, try to attend Daily Mass AND Confession as often as possible. The devil gets 7 days a week to try to drag you down, so punch him in the face by receiving the body and blood of Jesus 7 days a week. Confession is more powerful than an exorcism, because it's a SACRAMENT.
Go to Adoration of the Blessed Sacrament AS OFTEN AS POSSIBLE. When you die, you don't want to be a stranger to Jesus. You want Him to say, "I remember you! You sure came to see me a lot while you were alive!"
Read your bible for 30 minutes every day. Not only do you get an indulgence, but you are healing your emotions, your intellect, and your will.
Say the name of "JESUS" reverently and frequently during the day. It has great healing power, and it will drive those demons away!
While driving in your car, sing praise songs - "Praise to the Lord," "Holy, Holy, Holy," Holy God We Praise thy Name," etc.This will keep you from driving to places you shouldn't be at, and it will cleanse those impure thoughts. Our job down here is to praise and thank God by our thoughts words and deeds, and singing his praises will put gas in our tank to do everything to build up His Kingdom down here.
Develop a deep and abiding devotion to your Mother Mary. If you do that, she will take care of ALL of your salvation needs, your lost family members, and your sinful nature. JUST DO IT!
Wear a scapular and a Miraculous Medal. Have blessed statues in your home, Meditate on the Passion at 3 PM. Say the Divine Mercy Chaplet at 3 PM.
The devil likes it dark. If we all start lighting the candles above, he will hate it, and that, my friends, is a GREAT THING to do!