You don't find value, meaning, or identity from work. You find it in other people valuing you - specific people, people you know face-to-face. Having faceless "users" valuing your website doesn't cut it. Even your boss isn't (usually) enough, because you don't have the right kind of relationship with your boss.
That said, you also need work that you find meaningful. If you try to find your meaning in work, you're doomed, because work can't fill that need in you, but work you find meaningless is soul-destroying. So you also need work that you find more interesting/fulfilling. Just don't hang your whole identity on it.