Is a sentence example for ambitious, Ancient Egypt had an ambitious amount of God's and goddesses?

No. Ambitious directly means "determination to succeed". In this context, it's being used to show a large amount of something, which isn't right.

Frankly no. The word you want is abundant of God's and Goddesses.

Ambitious is more of a condition in humans.

The average pitcher on the Yankees team was so ambitious that he started every game thinking that this time he would get a perfect game.