Should I Be Studying Anything Other Than NLN Guide for NLN Exam?!

[Batman24]

I am feeling very overwhelmed right now. I have the guide and I am pretty much memorizing it. Are these questions really on the test?! Is there a place to get real sample questions?! My school said they used to suppley them but don't anymore.

Is there a vocubalary book I should also be focusing on?! How about another math book?! Based on the guide I should be able to score very high in these areas, but worry there will be tons of the test not included in guide book.

The science seems the hardest because I haven't done it in a long time. I know the guide fairly well at this point, but have heard little of this info is even on it. Very frustrating.

I don't even know where to start. And to make matters worse my school is saying I need to be in the 99th percentile for acceptance as they take only the top 40 out of 750 applicants. Yikes.

Any help would be appreciated.