I think Kathryn's advice is dead on. Stop thinking about totally changing the way you eat. Start thinking about adding more foods that are cleaner. Start off aiming for 2 fruits and 5 vegetables every day. When you can do that, up it - 3 fruits, 8 vegetables... Be creative in the ways you get them. Start looking at clean vegetarian recipes and cook one for the main course, and add a small chicken breast, piece of steak, fillet of fish, whatever as a side. But do be real - if you want a piece of chocolate, have a piece of chocolate - but try to avoid eating the entire bag. And really be concious of what is in the premade food you buy. Avoid things that have any of the following in the first 5 ingredients:
enriched wheat flour, hydrogenated oil (or hydrogenated anything), high fructose corn syrup, or sugar.
Once I started thinking of my diet as adding things that are good for me rather than taking away things that are not, it became so much easier to do. And I am totally amazed at how I feel eating this way. I can eat much more and feel full most of the time, and still shed pounds. And I'm discovering foods that I never thought would taste as wonderful as they do. I went to Macaroni Grill today and had a whole wheat pasta with marinara sauce, mushrooms, spinach and roasted red peppers that was so much tastier than many other meals I've had there. And as my body is getting the nutrients it really needs, I did not have to eat as much to be satisfied.