Trying to study but finding it hard

I have an exam on Wednesday. The last exam before the final in December. I have been really feeling under motivated to study. I don't know what the cause is really. I have done the reading and have read through the notes at least once over the last three weeks but right now it seams I just don't have the desire to study. I hate when this happens as it almost always happens toward the end of the semester. I think this is worst than normal though. I wonder if it is because of all the other things that have been going on in my life lately. I seem to feel so drained. I hope I snap out of it quickly.

Tim