You’re the main character of your life and an extra in everyone else’s. Act like both.

Both halves correct a different error. Forgetting the first makes you passive, waiting for other people to arrange your life for you. Forgetting the second makes you unbearable, since everyone around you is running their own story in which you appear briefly. Holding both at once produces someone who takes their own life seriously without assuming the room is about them.

Use the first half when a decision is yours and nobody is coming to make it. Use the second when you feel watched, because almost nobody is. The combination treats both self-importance and self-consciousness.