Losing weight is about keeping your calories under 1500 a day. Under 1000 calories a day is better, because you will lose weight faster, which will keep you more motivated to put up with the deprivation. Losing weight is also about limiting your carbohydrate intake to 10-20 grams per feeding, for the fastest weight loss. And weight loss is about a psychological strategy to help you deal with your carbohydrate cravings. 50% of dieting is a decision, and that decision is to limit your carbohydrate intake. The best psychological technique that I have found for dealing with your carbohdyrate cravings is Cognitive Defusion, which is part of Acceptance and Commitment Therapy or ACT. Google it.