3. Forgive yourself. One of the first things people tend to do after overdoing it on the junk food is beat themselves up. However, “if what you’re doing doesn’t greatly disturb your blood glucose measurements, there’s no reason to be self-critical,” says Arlan Rosenbloom, MD, adjunct distinguished service professor emeritus, Division of Endocrinology, University of Florida College of Medicine, Gainesville. So instead of feeling defeated, make a pledge with yourself to move forward from your old ways.