Congratulations on your time management :) I believe that when we grow up we learn to manage time differently, especially to prioritize and understand what matters most to us. I also sleep more peacefully if I've managed the day in the best possible way, it's a way to maintain control and make the most of the time available. But I believe that organizing time is also a way to organize our mind and our thoughts, managing to stay focused and perhaps have the impression that we can control time before it escapes us!