Public perception of success:
Meet or exceed the potential: If you come from a family of doctors and engineers, people expect you to be someone like your family. If you become less than that, you would be a failure. But if you come from a family with no college education, being accepted to college is a success.
Personal perception of success:
Varies on personal goal. It might even change with age.
In my youth, I tied my success with the money. Now, I take one day at a time and if I make a difference in someone's life, it is a successful day.