I often find logging off the MB and doing some reading is helpful IF I HAVE A LOT OF FUCKING READING TO DO! lol kidding.
I'm sure you'll get it all done and you'll do a great job Dana. Don't stress out though. That's not going to help get them done any sooner...although research suggests that all students have a certain stress point that they must reach before they'll actually start their assignments.
Mine personally was very low. I used to do mine as soon as I got them because I couldn't stand knowing I had work to do that I hadn't done. On the other hand, my cousin who is a mature age student with a part time job and three kids, always leaves hers till the last minute (sometimes litterally). I don't know how she does it.