Do I or Don't I?

I am having a very hard time trying to decide whether or not to do my National Boards. I hesitate only because to assure success, I need to take a 4 day class next week. Part of me says I mind as well go ahead and take the class, my summer has been spent in class anyway, and it is only 4 more days. Then, there is a part of me that would like to spend those 4 days doing NOTHING! Of course, I will really regret not doing it this year. I would be one year closer to my Masters with only $300 invested. I know it will be lots of work, but I think I can pull it off. Hmmm, any suggestions??