When they say that your ?% fluent in spanish but your not.
I just reached 30% fluent in spanish but i doubt that i really am bcuz i still have a hard time memorizing the words... :( lol
Duolingo fluency badge only shows how fluent you are according to Duolingo tree, not in reality.
Practise more and you'll get there :) read books, watch films and shows, etc. write down the words every time you forget them, that helps a lot :)
Try monologging in Spanish and looking up anything you're unfamiliar with once you're past initial sentence structure
I started working in Mexico last year, so I've been trying to learn. I have Spanish speakers around me but I'm still uncomfortable speaking it. I wonder when I'll get over that feeling...