The 80/20 rule is something else that was helpful to me when I decided I was going to get healthy. I'm a bit of a perfectionist which carries over to my eating. If I decide I'm going to eat healthy and then I go ahead and have a piece of cheese cake at book club, then I feel like I've failed. The 80/20 rule tells me that if I eat good things 80% of the time, then it's ok not to 20% of the time.
I have to admit that at this point, I'm more of a 90/10 sort of gal, but that came later. Anyway, this worked great for me. I'd eat mostly healthy food all week, and then I could feel OK about going out for Mexican food on Saturday night. This also helped me cut down on the pop. Coke was a hard thing for me to give up. If I told myself that I'd never drink another Coke, of course I'd want one immediately. So instead I'd have one a week. Some foods just need a coke to go with them (think Pizza and Bajio). So at first I drank pop, but much less than usual. The more I read and learned, the less I craved it. It's now been months since I've had a pop. And I'm OK with that.