How does structure effect your eating habits? For me, nothing falls apart more quickly than my food choices when I am out of my routine. And nothing feels worse than being both off schedule and feeling down on yourself.
Goals are good. Systems are better. There, I said it. Why? Because without a system, goals are just wishes and fantasies. You can't just want a thing, you have to make a plan to achieve that thing. On the other hand, a system without a goal still leads to growth and progress.