I have this problem with my Russian classes. It's partly due to the fact that I consider my Russian language classes to be most strongly linked to my future since they build concrete knowledge that I plan to use, and partly to them being by far the most challenging classes I've ever taken.
I dedicate too much time to them. Not too much time in the sense that I'm spending more time than is necessary for me to adequately get my work done, but too much time in proportion to the other classes I'm taking. Somehow, everything that has to do with the Russian language gets elevated above my other classes, and I find myself falling behind on reading, or skipping class, so I can better keep up with the pace of a Russian course.
It's a difficult situation to maneuver, because Russian is the hardest class for me to be behind in. Not only does an unhealthy amount of my self-esteem depend on it, but it's much smaller than any other class I'm taking. My Russian course in translation has about 25 students, my New Testament class, about 40. The Russian seminar? 5. If I don't speak in class, it's painfully noticeable to everyone.
My goal for the next semester is to manage my time, such that I don't sacrifice too much else to this seminar. It might be worth it in some sense, but it's strikes me as having too much power over the rest of my schedule. It's only going to control my life it I let it. Therefore, I need to start translations early, and structure my weekends better than this past one.
Then again, I spent part of the weekend being sick. I'm totally convinced that if I had felt better Saturday afternoon, I wouldn't be in this boat right now. Bah.