Give yourself the most power you can, because power is the only means to reaching any goal. In the past you have no power, so don’t place much attention there. You also have no direct power over the future, as you can only act in the present. Use the future as a navigation aid perhaps, but focus most on the present, because only here and now can you act. All your power lies here. Past and future have value but also offer distractions that makes the present play out worse than need be. Focus where you have the most power, and put it to uses that build a better future!