This is fascinating because we reached about the same point through radically different means.
Yours is mental and mine was analytical. No matter how we get to that point, the answer is to eat the amount of food to sustain your weight, and no more.
I took a pack of sugar home from the restaurant and measured it. One can of Coke contained 24 packs. My article explains what I did.
==> Keeping your Sanity and a Reasonable Weight
--> How I dropped my weight 40 pounds and kept it off for 31 years without special diets or exercising