So long as your level of apprehension isn’t so high as to be causing significant emotional distress, such a concern isn’t a bad thing.
One challenge posed by ‘dieting’ (I’ll explicate the scare quotes very shortly) is that, by definition, it necessitates an eventual transition to some manner of ‘non-diet’ eating–and for many people, non-diet eating = overeating. This trap is set as soon as you tell yourself you’re dieting, because you have indicated (to yourself) that you’re engaged in a temporary change in eating habits.
Now that you’ve lost all this weight, it’s time to stop thinking in terms of dieting, and start thinking about how you’re going to eat for the rest of your life. This is really what your post is about-- finding the right “structured approach,” to use your term. And the challenge you face in this regard is coming up with an eating plan that meets, at a minimum, the following goals:
- No long-term increase in bodyfat;
- allows the accretion of muscle; and
- doesn’t require so much effort/willpower as to make you miserable, and/or be unsustainable.
What sort of plan should you adopt? With regard to 1&2 the answer is easy–a plan that keeps your average daily caloric intake at a skoshe above maintenance. The trick is figuring out how to do this while still achieving goal #3. Happily, there are many ways to skin that cat. (With apologies to any cat lovers put off by the proverb.)