ball of fire vs go-getter

ball of fire and go-getter both are nouns.

Word	Noun	Adjective	Verb	Adverb
ball of fire	Yes	No	No	No
go-getter	Yes	No	No	No

As nouns, ball of fire and go-getter are synonyms defined as:

Other synonyms of ball of fire include whiz-kid, whizz-kid.

ball of fire (noun)	go-getter (noun)
someone whose career progresses rapidly	someone whose career progresses rapidly
a highly energetic and indefatigable person