Down the Tubes in No Time Flat

Today was the first major exam in my math course, in inequalities.  It happened to have a bonus question, so the good news is that I killed it for over the maximum: 106 points.  The bad news: I'm going to need that cushion.
I couldn't free up enough time to get help on systems of equations with three variables this week, so now I'm a full class behind.  I didn't do so hot on the word problems before the exam today, either...no clue as to what's going on.  I do have the MathTV videos but with two major exams next week the time to catch up is not going to be there.
This is where effectively permanently losing my tutor to a bad break (my colleague leaving the pharmacy) really hurts, and badly.  I have no idea how I'm going to tell my advisor that I know I'm in deep shit (pardon the language) but am basically in a position where I can't fix it unless something miraculous happens.
And with the way my luck runs, I can't say I believe in miracles....