I have zero experience in this so take my thoughts for what they are worth...

Perhaps by "overthinking" they don't mean...overthinking. Maybe they just mean to go with your first, gut reaction before analyzing the question.

I have a little trouble with this. Like I will probably think about how you will read this answer and edit it before you have a chance to read it because you might interpret it differently than how I mean it. (Just to make a point, probably badly)