Learning how to form a habit, will help you build the life you desire on autopilot. Your life is nothing but a sum of the things you have repeatedly done and thought about in the past. These choices might feel like well-considered decisions, but according to a paper published in Journal of Personality and Social Psychology, more than 45 percent of our actions were not actual decisions but were instead habits. 1 A habit is a behavior which becomes so automatic over a period that it requires no thought, energy or effort to do it. Learning how to form a habit will let you shape your life without thinking about it.