Truly successful people are extremely good at one thing you and I may overlook. They are very conscientious about managing their energy. They understand what gives them energy and work to increase those activities, while also being clear about minimizing their engagement in activities that reduce their energy. Know what feeds you, what depletes and... who feeds you, who depletes you.
The energy you have determines how much you do. Successful people tend to get more done often simply because they have the energy for it. Manage your energy like the critical resource it is!