I need a negative term for someone who puts too much effort into unimportant things or assignments. I could only think of "overachiever", but I don't know if that is a good word for that kind of person.
I don't have a sample sentence, so I hope this isn't deleted because of that issue.
Edit: Thank you for the answers! I did want to clarify that although I put "negative term", I'm not using this to be mean to anyone. I'm trying to find a good word for my college essay about myself. And to answer someone's question, it's "negative" in the sense that it annoys others because of how much effort that person puts into things that don't mean anything in the long run.