The more self-control you have to exert in order to shed your extra pounds, the quicker and more likely it is you will become fatigued. The quicker you become fatigued, the more likely it is you will have less self-control. As you can see, exerting too much self-control is going to be counter-productive.
The way around this dilemma is to set up some weight loss strategies that require less self-control. For example, you can plan the different weight loss steps you could take in a variety of upcoming situations. You could set your plan in “if-then” form: “If such and such happens, then I will do so and so.” Practicing such plans and getting them down pat makes them a weight loss strategy you will have at your disposal. Applying what you plan and practice in the different situations will make using these weight loss strategies a good habit. Once your weight loss behavior is habitual, it happens more automatically and then no longer involves such strenuous self-control.
Self-control/fatigue problem solved.