Почему нет сил? Как сделать энергию неиссякаемой?

I spent about two years practicing thought power, meditation, and holotropic breathing, even writing with my left hand, listening to music, observing myself, completing 90 days of smiling and 28 days of gratitude. Yet for several months I feel drained, lazy, lying in bed, only going to work and for food. Why are my energies depleted? How can I make my energy inexhaustible?