Experiencing memory loss

I studied both India and China before completing my video lecture series on turning points in US History.  By the time I finished the video series, my family was home.  My daughter was especially chatty this afternoon.  Still, I decided to take one of the AP US History practice tests that I have just to see how I have retained my US History knowledge (now that I’m back to studying World History again).  The house was noisy and distracting – not ideal conditions – and I wound up with my lowest score to date, a 56%.  This is not a real confidence booster just two days before the big test.  Tomorrow will be nothing but review and practice test taking; I guess I’ll need to spend at least a little time on US History (though at the expense of World History).  I’m still hopeful that I can pass all sections of the CSET test on Saturday, but I am now less sure that I will.