(Image created by A.I. DALL-E/Bing)
If we factor in the degradation of our bodies then we even have less time to do what we actually want to do. If you're in your early 20s, for example, it's no longer time for you to be starting the process to join a professional sport team - if you haven't started in your early childhood then you've already missed that boat and it only gets worse from there.
Your mental faculties also degrades over time and you'll notice that you may not be as creative in your later years as you were years prior.
Yes, life is short and it's even shorter than we actually think it is as we often don't consider the time where we passively live whenever we think about the duration of our lives. Work on your goals with a sense of urgency as tomorrow is not guaranteed and even if you are going to be here tomorrow... tomorrow will come sooner than you think and you may not have the ability to work on your goals anymore.