I called myself - A dumb way to pretend you're something awesome, even though

A dumb way to pretend you're something awesome, even though you're clearly not.

I called myself a ninja after I got caught sneaking snacks. I was totally busted.

I called myself a dragon after I fell asleep during my own story. I was a sleeping legend.

I called myself a emperor after I lost my crown to my pet goldfish. It was a fishy situation.