Nobody ever said that productivity advice had to be deep or clever. Unfortunately someone may have said it has to go on at length:
Schedule rest time first. I know that it sounds counterintuitive but if you want to increase your energy, you need to have adequate recovery from the stresses and strains of daily life. This requires rest. Identify the amount of rest that you require and block that time out of your calendar. Nothing short of an emergency should interfere with this time.
When you are well rested, you are more energetic and ready to take on the world. You can give your all to every task because you know that you will have sufficient opportunity to recover from your efforts. Prioritise your rest time.
Read the full piece for the five habits and to find out that Carthage Buckley is a real name.