I am him syndrome - You act like you're the only one who matters, but you're jus

You act like you're the only one who matters, but you're just a nobody with a big mouth.

I'm the hero of this story, not some guy who thought he could beat me in a bet.

I'm the star, not some person who thinks they're important just because they said so.

I'm the man, not some fool who thinks he's got it all figured out.