YOU SAID:

I, kylee am the smartest in the world and the coolest.

INTO JAPANESE

私、カイリーは世界で一番賢くてクールです。

BACK INTO ENGLISH

Kylie is the smartest and coolest person in the world.

INTO JAPANESE

カイリーは、世界で最も賢くてクールな人です。

BACK INTO ENGLISH

Kylie is the smartest and coolest person in the world.