For example, let's say on Monday you vow to lose weight, but by Tuesday you're attacking a box of cookies with the aggression of a 10-year-old boy. Or maybe you have resolved to work out like a Marine, but you quickly find the first excuse you can to sit on the couch and relax. If either of these scenarios sounds familiar, then your problem lies in your approach.
Everyone starts strong-willed on the first day of their resolution, but usually, within a few weeks, most people are back to their old ways. In truth, these people miss their goals because they don't base their resolutions on behavior changes. For example, instead of saying, "I'm going to work out like a Marine," formulate a simple and easy-to-follow plan, such as, "I'm going to the gym three times a week."