Why can't my future be happy?

Why can't I have something for myself?
I want to be in a different mythology class because I can't stand my professor and his attitude, but I don't want to be in her class as she flaunts all of her 'love for mythology' and does that annoying thing where she bathes in attention and I get to be the half-wit sideshow.
Seriously. I just want to get the credit for this class and be done with it. But I don't want to be stuck in a class I'll be miserable in, and either way it seems to be the case.
Which pisses me off immensely. If I wanted to just be able to glide through a class I'd take the one she's in, but I'd be far too irritated to make it through a semester of that class with her in it, because she'd either glide through it too and flaunt it and be annoying as always, or she'd bomb it and whine and moan and be pathetic and even more annoying. I can't tell which I hate more, when she's good at something and doesn't know when to be modest, or when she's bad at something and doesn't realize to improve means she either has to actually do something, or stop complaining.
And her class sounds like more of a social place, which is something I'm not sure I want to get into. I'm not here to make friends, I'm here to get good grades and a degree and be done with this. College isn't about having fun, it's about getting something productive done with your life so you can go on to suffer through the rest of the torturous and tedious experience until you can finally die.