At the end of life, what's really important is
How will others remember you?
How long will others remember you?
Did you really leave a mark?
Did you do something to make a difference?
Did you contribute towards a good / noble cause?
Did you make a positive difference in someone's life?
Did you share your knowledge / wisdom, including the lessons of life?
Did you touch the life's of those around you, specially your near and dear ones?
Did you really experience life?