I was very strict with both carb and calorie counting when I was losing weight. I initially weighed everything, used the Carbs & Cals book plus the internet to calculate what I was eating, and recorded everything meticulously. I stuck to 1200 calories and kept my carbs and fats within that level. Once my weight reached my target I increased the calories from fats and protein to maintain it. I stopped all the weighing and counting a long time ago, and in November will have maintained my weight for 2 years.
That worked for me, and now I am low carb high fat, but have no other medical issues and no meds.