Please don't say you failed - that really hurts you. The Canadian Healt Food diet suggests: a handful of protein, a handful of grains/cereals and two handfuls of vegetables. In between meals: nuts and fruit. Plenty of water (add drops of pure lemon juice it knocks out your appetite). Go for a walk after your meals. I don't believe you can fail in life. I believe you can fluctuate between better or worse, but you have to keep moving, keep trying. That's what living is all about.