Take your time eating and chewing your food. Drink several cups of water before and after eating. One big mistake we make when we eat is to rush while we eating and that't not good. Also make sure you have a high intake of fiber through out the day. Fiber will fill you up.
I suspect a source of anxiety in your life is presenting itself as hunger. Anxiety or angst, if you prefer, is often felt as "butterflies" in the midsection which is very similar to hunger pangs for some people. Many continue to attempt to satisfy this angst by eating when they are not and could not be hungry, which leads to self inflicted weight gain, which leads to increased anxiety, which leads to...... You see where I'm going. Before you go there, you must identify and face the cause before you have to deal with the results. Good luck!