My Math Genius Secret Identity

So yeah, I'm pretty sure everyone at school thinks I suck at math. Like really sucks. But here's the thing, I have this secret identity where I turn into a math genius at night when no one is looking. Just me and my calculator and some YouTube tutorials. It's like a whole other life, man. And then during class I try to act all clueless so they don't find out. Like seriously though, why do teachers insist on asking questions in front of everyone? That's just mean. But anyway, is it normal to have two totally different math skill levels for night and day? Am I the only one who keeps this kind of thing secret from friends?