How  do you interpret this saying “Live you life as if you were to die tomorrow”?

Like others commonly say, I’d like to do something that I really want to do if I died tomorrow. On the other hand, this idea brings another question. What do I really want to do in my life? Spending all my money to buy luxury items and eat very expensive foods, etc. or hang out with friends at the vip club. These are also one of my wannabe things, but they are far from my final goals. I hope to keep my dream such as, having a decent job in the field where I want to work, meeting my soulmate who I can share all of mine with, and living happily ever after with my family and  friends. These wishes can’t be realized on a day and require my steady efforts to learn more and to do my best for them. To move back to first, the last day of my life will be just a normal day when I should do my work and duties in order to chase my dream, but I have to do them more passionately and to enjoy all of my life though the journey is really long and tough. There is no more time to waste with worries.