Above all, start by staying away from people, things, and places that will harm you.
If a TV show is bad, turn it off. If a movie is crude, walk out.
Replace bad thoughts with happy memories; picture the faces of those who love you.
Be where the Spirit of the Lord is. Make sure that includes your own home or room. Carefully choose the kind of art, music, and books you keep there.
Pray always. Ask for angels to help you.