Constantly making the wrong decisions

I'm making the wrong decisions and liking it! Well .... not really. The decisions I make are immediately gratifying but ultimately destructive. For example, I see a nutritionist and I'm trying to lose weight. The bad decision: Getting a bacon egg and cheese sandwich for breakfast today. I'm reading "Finding Your Inner Giant" by Tony Robbins. This book talks about this behavior. The book points out how people make decisions based upon their relationship with pleasure and pain. I associate pleasure with fattening food and to deprive myself of that would be painful. Hence I made a decision that goes against my personal value of being healthy and eating right because of this relationship. Like exercise, I associate exercise with pain. I associate going to the NJ Motor Vehicle Commision with pain (I think we all do). This book is awesome, so far. Its basically showing me where I'm screwing up and why. I'm blown away by how crystal clear the problems in my life have become. Now, how do I fix them? I've read a few self-help books and they offer some useful suggestions and concepts but I've not yet read one that "completely changed my life." I'm only a couple of chapters into this book, I'll let you know how it goes.