Long-term weight loss takes time and effort and a long-term commitment. Make sure that you're ready to make permanent changes and that you do so for the right reasons. Setting weight loss goals is probably one of the more difficult steps of a weight loss program. How much do you need to lose and how do you calculate that number? To stay committed to your weight loss, you need to be focused. It takes a lot of mental and physical energy to change your habits. A strong commitment, inner motivation and to set realistic goals is the most important thing to be focused.