Do you ever ask yourself this? You should. If you do, the answer should include all important aspects of your life.
The answer will be different for each of us. For one person it will be gaining a certain title or earning a certain amount of money. For someone else it may to train their dog to roll over. Or, maybe it’s a combination of both, because true success should be achieving your definition of success in your work and personal life.
This is balance. Whatever your definition of success is, it should involve balance. If your work life is a 10 and your personal life is a 2, or vice versa, there is a problem. If so, you need to work to figure out how to move towards balance.
I also think you need to define success by what matters to you and makes you happy, not others. This doesn’t mean you should ignore what others think, but it is only one consideration and may or may not fit within your definition.
And your definition of success will change over time. What is important to you at 28 is different than what will be important to you at 38 or 48. This is how life works.
It means you should revisit what success is to you on a regular basis, because true success involves being happy and content in your ever changing world.