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Use "over-achiever" in a sentence
"Never an over-achiever, he was there for a number of years so I had plenty of time to get to know him and Jughead, Reggie Mantle, Veronica Lodge, Betty, Moose, Dilton Doily, Midge, Ethel and the rest of the gang."
"Sure, we all know her from “The Devil Wears Prada,” but much like the British ruler who reigned from 1837 to 1901, Blunt seems to be quite the over-achiever."
"The role that felt the most empowering of all was the fast paced, over-achiever."