How much you eat has little to do with how hungry you are! It's nutrients that your body is asking for. Make sure you've got a good balance of protein, complex carbs, veggies and healthy fats at meal times so that you feel properly satisfied.
"Being healthy and fit is so much more important than being skinny. Women are not all built the same- Each of us are are different in size and shape. One person's weight (size) maybe healthy for them but not for you!