I think this was a good tip someone left on fatsecret in a motivational group im in there. I totally agree with it and how so many others around us make it easy for you to slip back into your old habits. You have to be the one to keep yourself on track. You've got to really want it and not make any excuses for yourself because in the long run its you that its gonna hurt if you do.
Another good tip is make your lifestyle change, to a healthier life, is to make it "NON Negotiable" and stick to it no matter what others say.
Think about it, we live in a selfish world and most of us are enablers of others weaknesses on a circumstantial basis. Notice too that most of this is unintentional and almost subconscious most of the time.
So really, you know what is best for you. DONT NEGOTIATE YOUR HEALTH AND SUCCESS because someone (or could even be your own thoughts) is seducing you with something your body doesn't need right now (could be stress, food, too many drinks, drugs, etc...)