Being so proud you lose your sanity? That's quite odd. It's an insane amount of hyperbole.
One definition for "insanely" is [0]:
> to an extreme degree.
Strictly restricted? Of course not. But for what it's worth I've been told by numerous Europeans that they perceive casually throwing around extreme hyperbole to be characteristically American behavior. I guess it goes with waitresses pretending to love you.