anyone else's art teacher suck? (little rant)

bro my art teacher just casually takes a pencil that isn't on the colour scheme I'm going for and then starts scribbling on my work and says he's making it 'better'. Like EXCUSE ME!?!?!

but when I go to make my art better, he takes the pencil out of my hand and says 'what are you doing? that' just gonna make it look boring!'

My art teacher infuriates me in ways other people can't.