A basic healthfood diet with food combining will give changes in energy. But here's another little change you can do. Cease drinking toxic stimulants like coffee, cokes. Coffee gives pancreatic cancer. It actually collects on pancreas as a black spot, visible in the eye.
Tea is good stuff.
The smart Brits conquered the whole back end of the world to get at this fragrant leaf with its gentle kick. Here's a way to smooth out the caffeine in tea so you can sleep at night. I am going to give you a magic tea recipe that will not prevent you from sleeping but which will give you energy when required. Try this terrific recipe. Simmer spices 10 minutes, then add 1 tsp blk tea, or a few Lipton's bags.