Comparisons

Think of the ideal you. It can be as general as you like or about a specific issue. If there is something you'd like to improve, what would the result look like?

I believe many people base themselves on other people rather then on their own personal ideal self. He's in better shape than me. She's so much prettier and outgoing than I am.

You are the only you. Everyone else is on their own.

There will always be somebody better then you and always somebody worse then you. As soon as you can start defining yourself on your own, and not in the comparisons or expectations of others, you can grow your own self worth.