Forgive yourself first. You are not bad because you made a choice that was not the best. Forgive, move ahead and no beating yourself up. I think if you find ways that are "painless" at first it might help jump start you. Walk a little farther by parking in the space farthest from where you need to go or walk a lap around the house before getting the mail to get more movement in your day. Make subs for foods you like where you don't notice or mind it-skim milk for whole (especially when cooking), fat free half in half in hot beverages, soy bacon or burgers for the real thing. Small steps will add up and motivate you to try more. Best wishes!!