In my area (Maryland/Washington DC) the journeyman's tests are only about two books:
1. National Electrical Code Book
2. The local amendments to the National Code in the area where you are going to take the test.
Get a current copy of BOTH and DO NOT try to memorize them!
The journeyman's tests I have taken are all about finding out if you know how to USE the books, NOT IF YOU HAVE MEMORIZED THEM.There are many practice exam books on the market. Just buy a few and practice looking up the answers in the code books.
Do not be afraid to take the test and fail. If nothing else, by taking the exam you will know what you are getting into the next time.
Best of luck,
Power to the people