I'm sorry. That sucks. I get it, though, sometimes the littlest things can push us over the edge.
You wanna know something? My math teacher was all "lol you all went to a San Juan school so you totally know this already so I'll just give you a quiz on it." Guess what never-been-to-public-school-in-her-life girl failed it? Yes, that'd be me. And that was the first thing to go on the grade book. So if I go check my grade online, I'll have an F in the class. Don't feel too bad.