There’s enough advice on happiness floating around out there to make your head spin. Yet, this is understandable, as everyone is different.

Everybody makes mistakes—that’s a given—but not everyone learns from them. Some people make the same mistakes over and over again, fail to make any real progress, and can’t figure out why.

Successful people often exude confidence—it’s obvious that they believe in themselves and what they’re doing. It isn’t their success that makes them confident, however.