Break the diet cycle of restricting, fasting, cleansing and bingeing. You have to find the motivation and discipline to stop this pattern. It has nothing to do with willpower. You have to want to live a healthy lifestyle.
After years of ingesting copious amounts of CRAP, I finally changed my diet and eating habits. It started with reading books on farming, nutrition and health. I stopped pouring a bottle of salad dressing on my salads and learned how to eat a wide variety of foods. Stop making excuses and start creating healthy habits.