Hello, So as a last min strategy I decided to use the Petersens practice tests and got knocked on my butt.

I got a 54 & 39. A lot of the stuff on these tests isn't in the suggested text or IC.
I've heard that the Petersens tests can be tougher than the DSST. Graduation hinges on my success of this test and I am REALLY sweating bullets.
Should I try to comb over the tests (this can either pay off big or not at all- depending on how similar the content is.)
or should I study the IC material and trust that what I need is in there?
ANY advice is GREATLY appreciated! It's the bottom of the 9th and I don't want to strike out. THANK YOU !!!!!!!!