It is virtually impossible to change your external environment. You can’t always control what foods you’re going to run into and the temptations you might face as you venture out into our excessive food environment. You can, however, control what you encounter in portions of your immediate environment, such as your home.
First off–don’t bring home foods that are poorer choices and that you can’t resist. If you can pound back a full bag of chips without breaking a sweat and will do it if it’s in your cupboard—then don’t have them in your cupboard—leave them at the store.
Also, don’t leave temptation foods in plain site. If you leave a bowl of candy on your counter, and you have a weakness for candy, then everytime you walk by it you are giving yourself a visual cue to eat. Why do that to yourself? That’s not very nice of you if you are trying to eat candy in moderation!
Behaviour change doesn’t happen over night and it is more difficult for some than others, and depends on the behaviour in question. Find ways to make it easier on yourself and make sure that you are not unnecessarily tempting yourself back into the negative behaviours.