If you find you're an emotional eater, find other nonfood ways to comfort, distract, and resolve your issues. We all experience anxiety, loneliness, boredom, stress, and anger, but food will only offer a short-term fix.
Eating in response to your emotions can actually make you feel worse, because you'll still have to deal with the source of your emotion, as well as the discomfort of overeating. Write in a journal, call a friend, go for a walk, lift some heavy weights: these are all great ways to get your emotions out.