A thing about Fridays

So, every Friday I have a test in my German class.  I have done well, though with each passing week my score declines...I know, it isn't suppose to happen that way.  What this means is that I study all week, do homework, etc and then on Thursday night and Friday morning cram/try to memorize as much as possible.  By Friday afternoon my brain is warped and all I do is clean to have a release.  Tomorrow is Friday and I am in no mood for another test.  So, I am off to bed instead :)