Yes, you feel good when eating that amount. But your body is like a machine - counting the calories all the time. When there is lack of calories the body "saves" some deposits just in case (from every single piece of food you put in your mouth)). Therefore you don't lose much weight. But if you are eating on a schedule, small meals plenty of proteins, carbs and vitamins, your body works in a normal regime. And no excess calories are stored as fat tissue anymore. Common mistake - the less I eat, the more I lose. Depends on what kind of food you eat.
The main meal - breakfast. It should contain protein and carbs. This meal is fully digested, your body needs a fuel in the morning so it burns all of these calories. (eggs, oatmeal, jam toast are recommended). Sometimes you need to force yourself to eat, but you need it.
Lunch - here salads and fruit are good. Add some fish, turkey, soft white cheese, cottage cheese with fruit, etc.
Dinner - better a light one. (chicken broth+chicken meat, veggies, or yogurt if you feel full).
Don't forget little snacks like nuts and a fruit.
Just sit one day and make a week menu. The dishes may be the same every week, just change the ingredients.
The good thing about Duromine is its appetite suppression effect. But everybody needs to charge his batteries, otherwise you will get nothing more than metabolic imbalance. Plus, it will be much easier for you to keep the same regime after you finish the pills. Because when pills are no longer in your system your appetite and your old eating habits are back.
I hope this helps, and I hope you will make the right conclusion.
Ps. I know this whole cooking takes much time, but you can prepare everything in the evening and the next day just take it with you at work. Use small containers and take them with you. This way you will avoid temptations to buy some junk food on the way to work or other place. Anyway your weight loss is worth it.