AA and other twelve-step programs are full of wisdom about change. One of my favorites is "one day at a time." You don't have to stop drinking forever — you just have to get through today without drinking. Then when tomorrow comes, you do it again. That's a very intelligent strategy because as soon as you think "never" or "forever," your mind immediately throws up all kinds of resistance. Forever is just too darn long. Never is just too hard. But today? Anyone can do today. You don't have to be an addict for this to be useful.
— M. J. Ryan, This Year I Will . . .