Why do I feel such a sense of failure when I always put weight back on again after going on a diet?

Answer: Diets are doomed to failure each and every time!

The only successful way to both lose weight and maintain weight is to establish lifelong healthy eating habits. When we take small daily steps and congratulate ourselves every day for even the smallest change towards achieving our weight loss goals, we begin to think like a winner. And the more we think like a winner, the more we begin to feel and look like a winner.