We all have a very short time on earth.
Suggestions:
Listen, learn, and be humble.
Examine Confucius, Siddhartha Gautama, Socrates, the “sermon on the mount” and the good Samaritan parable, More, Kant, Kierkegaard, Darwin, Marx, Dewey, Lu Xun, Malraux, Camus, Hemingway, Rawls.
Living as a self-authentic human being, learning about the universe, and using that knowledge to help others seems to be just right.