Coming up for Air....err I mean.. You can't see me

I have been studying all day....and by all day I mean it is now 6pm and I started at 9:30am. I am about to go back down to my hole (i.e. our bedroom) in just a few minutes, but I wanted to come up for air and post a little update. I hit the wall last night. I was going through some practice questions and couldn't recall what felt like was the majority of the information. Don't worry I didn't have an all out break down, but I definitely had to walk away and take a breath and tell myself that I still had four days to study and I shouldn't jump over a cliff just yet. So I calmed myself down, hit the books again and rededicated my weekend to staying in bed with my 2 foot pile of books. Every time a little voice sneaks in my head that sounds a little unsure I channel the "little engine that could" and tell myself "I think I can, I think I can". I definitely don't want to reschedule this test, but I also don't want to fail it. I would have to wait 6 months before I can retake it and that definitely doesn't fit into my life plan. But rescheduling means that I have to continue studying and I am just not sure I can keep up this intensity. I need this to be over. So I can reschedule Monday if I absolutely positively HAVE to....meaning if I really think I won't be passing this test. But I am hoping this last 60 some hour push will be enough to get me through. Say it with me people! "I think I can I think I can". 
Back down to my studying hell hole!