Think about the immediate psychological and physical benefits of getting in better shape. In the International Journal of Obesity, short-term goals such as boosting energy, eating more healthfully and feeling more confident were more effective than long-term, less specific goals.
Avoid all-or-nothing thinking
Clinical research has shown that a feeling of deprivation can impede progress when trying to lose weight. If you eat a piece of cake, don't beat yourself up about it. Recognize that you can have a piece of cake once in a while, as long as you exercise a little more or cut back at dinner.