Life coach Cheryl Richardson says that creating your best life has more to do with what you remove from it than what you add to it.

Everything undone, incomplete or unresolved drains your energy. Not being honest with yourself and avoiding conflict drains your energy. Every action you take uses energy, and every action you don't take uses energy.

Identify and Eliminate Your Energy Drains.
If you are feeling overwhelmed and drained, you might have difficulty knowing what areas of your life to work on changing. Most of us are unconscious about how our mental energy is used throughout our daily lives. Becoming conscious of where your energy flows can be very revealing.