LIFE STYLE CHANGE.
When you begin a "program" to lose body fat, you may set yourself up for failure. A program implies an endpoint, which is when most people return to their old habits. If you want to lose fat and keep it off, make changes that you can live with indefinitely. Don't over-restrict calories, and find an fitness program that adequately challenges you, provides progression and offers sufficient variety so you don't get bored and can keep it up for the rest of yourlife.