on top of the world

1. Feeling very happy, delighted, as in She was on top of the world after her roses won first prize. This idiom alludes to the peak of success or happiness. [c. 1920]

Example Sentences

Personally and professionally, he was on top of the world.

From BBC

“When I was standing there on top of the world, you become so humble, you do not think about breaking records anymore, you do not think of about gaining scientific data. The only thing you want is to come back alive,” he said after landing safely.

From Los Angeles Times

Speaking at a media conference after his record breaking jump, the he said "when I was standing there on top of the world, you become so humble".

From BBC

Al-Hilal head coach Simone Inzaghi felt as if he was back on top of the world.

From BBC

But on Saturday, McIntosh was back on top of the world after swimming a 3:54.18.

From Los Angeles Times