I'm also a semester away from graduating with a CS degree, so I feel your pain. But the way I look at it is that I will never use most of the stuff I learn in my CS classes anyway (not the boring stuff). Maybe I'm wrong, but I really don't think that I'll ever use the pumping lemma for context-free grammers ever again. And if an employer asks me to, I'd probably quit. Just figure out what it is you love about computers and get someone to pay you to do it!
I'm also a semester away from graduating with a CS degree, so I feel your pain. But the way I look at it is that I will never use most of the stuff I learn in my CS classes anyway (not the boring stuff). Maybe I'm wrong, but I really don't think that I'll ever use the pumping lemma for context-free grammers ever again. And if an employer asks me to, I'd probably quit. Just figure out what it is you love about computers and get someone to pay you to do it!