I almost died last year...

In health class that is. Well mostly the sex ed part. It all just kinda creeped me out, and made me feel so awkward. And now I have to take another health class only now it's gonna be more in depth. I am freaking out already, and the sex ed part starts like in 3 months or something. I'm not immature, it's just it kinda creeps me out. And now we actually see the std's on the parts! The people committee group thing, whatever approved real pics. I'm seriously gonna leave that class room, beg my mom not to sign the page. My teacher said this: "We want to show you these pictures so you won't do well, you know what." I already know what and what not to do, I'm asking my mom for my ring(purity) for Christmas since I can't afford one on my own. I really don't want to take this class, what should I do? It's freaking me out.
I almost died last year...
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