The essence of a belief is the establishment of a habit.  
Have I come to believe yet?

Addiction is trading away the future to feel better today.  
How did that work out for me?

If my addictions had made me happy, I wouldn’t be in recovery.  
Do I find myself surprised at some of the things that make me happy now?

“The mind is its own place, and in itself can make a heaven of hell, a hell of heaven”  ~ John Milton, Paradise Lost
How is my head treating me today?  How am I treating my head?