There is excellent advice in this thread. As well as shunning carbs, wheats, sugars, energy bars I encourage you to take the advice of committing to a rest day or two very seriously. Your body needs the time to catch up, everyday efforts are for those who have years of training, and even they know that intense day to day efforts are counter-productive. Build into your weekly routine stretch and flexibility days, think about building a long term platform for sustainable energy and health, not getting short-term results. Think in terms of months and years.