You can not live every day as if it was your last.
Otherwise, tomorrow, if you did wake up, you might be a bit short of money after having blown it all the day before.
However, today is now.
Now is the only point in your life that matters.
Do something exciting, say something special to someone, make another person smile, choose to be happy, do something different and new. Choose only to do, think and say good things.
Now is life, tomorrow is uncertain, and the past is gone.
We could ask ourselves at the end of each day, what did I do that mattered today?