Depending on how much studying you need, for the next 2 months, before going home go to the library for one hour per day and study. Don't just open the code book and read, but rather read a practice questions and try to find the answer in the code book. Mike Holt's Exam Prep book is a great book.
for the exam, you need to do 4 runs through the test
1sr run: read the questions and answer them as you know the answer by heart. you dont have to think about the question that much
2nd run: read the questions that you couldn't answer on the first try, but this time spend a little time on them.
3rd run: read the questions and try to answer the ones that you couldn't on the 2nd run but spend a little more time on them.
4th run: read the questions that are left unanswered and choose the most logical answer. But do not leave any question unanswered. If you have to guess choose answer "C".
read the questions all the way and pay close attention to words such as: larger than, smaller than, less than, .... because these can really trick you.
And once you pass the test, and we all know that you will, don't stop studying. Because learning will never exhaust your mind.