Re: verbal abuse from a teacher
Ya know, honestly my advice is really simple. Leave. Right now. There is no excuse in this day and age for that kind of crap. You don't need to be part of some idiot's "We're Cobra Kai" inadequacy compensation power wet-dream. There is no shortage of good instructors out there. You are not an indentured servant, you're not a slave, you're not a whipping post. You owe no explanation, no letter, no goodbye.
Do yourself a favor. Stand up, walk out, and walk away. Find something better for yourself because *no one * deserves that. Not today. Not ever.