CgRgSm,

I try hard not to be a hater but, that teacher sounds like a *****. My son is your age and he had crappy teachers too. No child should have to endure that in school.
I've been where your at. It felt like I was in a thick fog. It does feel like everything is hopeless. Like there isn't a ray of light coming in. But the fog does lift and the light does shine through. (It's painful for me to read of your suffering.) Hold on. Your perspective is going to improve. I'm thinking good thoughts for you.