Wasted Thoughts
You don't realize how much time you've wasted in your life, until you get older. It's at that point you realize you wasted a lot of years being unproductive, not maximizing your time as you should have. Sometimes the value of time doesn't become relevant until it's to late, and you come away thinking where did all those years go? Time is the enemy of all of us, and if you don't utilize it wisely, you existence becomes a waste of time.