Jesus’s words in Luke 13:25 are quite sobering. At some point, time will run out and it will be too late to be saved. Just like God locked the door of Noah’s ark and it was then too late for anyone else to climb onboard, at some point in the future it will be too late to be saved. Notice the reason people won’t be saved — because Jesus doesn’t know them (repeated twice in Luke 13:25-26). Salvation comes from knowing Jesus – having a relationship with Him. Not by having our “good” deeds outweigh our “bad” ones.
How about we spend the rest of our days on this earth bringing as many people to Jesus as we can? That is a life that's well lived.
Living to make Him Known... is a great place to start.