That sounds horrible. I feel bad for you and I hope there´d be something I could do for ya.
My teachers are very boring as well, either that or so incompetent I feel like correcting them or telling them "Just do something already! Something! Anything!" The only thing you can do is learn everything you need to know and get this over with and move on with your life :/
Well, why do they suck? Is it because of your teachers or because of the people attending? Well, either way, you gotta get through this. I know how you feel.
Death threat? What was it saying? Why would someone send someone a death threat? O__o Seriously, if things go too far, you should seek help. I´d take that stuff rather seriously and panic, going to my parents or the police or something o___o
He started bullying you, but you have friends who´d stand up for you. That´s something good, right?
Your friends are there for you, aren´t they? Well, that´s something I´d be happy about if I were you. Certain people don´t even have friends, only enemies and the cold world sorrounding them.