I drank three glasses in the last 5 hours. And I'm pulling an allnighter.
naw, it's the sleep issue, have some more wine.
I feel the same way!  I am a junior in college also.  I was so motivated before but have had to force myself to do things this semester.  I have a test this upcoming Wednesday and a presentation due next Wednesday.  Instead of studying or doing research, I am on Yahoo Answers!  To combat your problem, just force yourself to start working on the paper.  Once you get the ball rolling, you will find it gets easier.  Don't allow yourself to take a break unless you absolutely have to or you will just go back to procrastinating.  Good luck!