Drink 2 full glasses of water before eating anything. Try getting really into typing, piano, Rubik's cubes or video games. Anything that will keep your hands busy so they're not putting food in your face. If possible, try to full on skip meals. Set an alarm later so you don't wake up in time for breakfast, work through lunch and leave early and then eat. The less you eat, the less you want to eat and vice versa. I'm lazy as hell, when my pants get too tight, I'm too lazy to try and eat smaller portions but full on skipping meals is easier for me personally. Being hungry sucks but try and focus on the positives, saving money food is expensive, less dishes to do later, the less you eat the healthier you'll be. Ditch carbs as much as you can.