Let me make this very, very clear: You did not fail the diet. The diet failed you.
The diet industry is big business, making billions of dollars a year. It’s probably the only industry where people continue to buy the product, despite a failure rate greater than 90% (cited as up to 98%).
Such a high failure rate is (oddly) profitable for diet companies. Why? If a diet worked the first time, you’d have no reason to go back and spend more money.
Many diets work for a short period of time. You lose weight, receive loads of compliments, feel great and believe that this diet (finally!) is successful.
However, for over 90% of people, the diet becomes unsustainable. The weight goes back on (usually with extra), the compliments stop (and you become panicked about what people think of you now), and you feel like a failure.
But why do you blame yourself, rather than blaming the diet?