Although the overall goal seems huge, see it as a way to go rather than as a final destination. You can acquire new eating habits and physical activity that will help you lead a healthier life. These new habits can help you not recover the weight lost over time.
Besides improving your health, not recovering the lose weight naturally will probably improve your life in different ways. For example, a study that included participants from the National Weight Control Registry revealed that those who lost a significant amount of weight and did not recover it reported improvements not only in their physical health, but also in their energy level, physical mobility, general mood and self-esteem.