Hundreds of fad diets, weight-loss programs and outright scams promise quick and easy weight loss. However, the foundation of successful weight loss remains a healthy, calorie-controlled diet combined with increased physical activity. For successful, long-term weight loss, you must make permanent changes in your lifestyle and health habits.
Long-term weight loss takes time and effort — and a long-term commitment. While you don't want to put off weight loss indefinitely, you should make sure you're ready to make permanent changes to eating and activity habits. Ask yourself the following questions to help you determine your readiness:

Am I motivated to lose weight?
Am I too distracted by other pressures?
Do I use food as a means to cope with stress?
Am I ready to learn or use other strategies to cope with stress?
Do I need other support — either from friends or professionals — to manage stress?
Am I willing to change eating habits?
Am I willing to change activity habits?
Do I have the time to spend on making these changes?