One of the most important skills to develop in order to lose weight is to trust yourself. This is not as easy as it sounds. You need to view yourself as a trustable person, particularly around food.
Why and when do we eat?
Let's start with a simple exercise. The purpose of the exercise is to work out what makes you eat, because, if you're overweight, you're probably not eating because you're hungry. Perhaps you eat because you're lonely, or because you've been invited out to a business lunch or dinner, or because you're depressed, or perhaps even because the food is simply there?