I would suggest taking the Electrical CBT if you went to school for electrical engineering. I just passed the exam in July, after being out of school for 6 years. It took me 4 times. First attempt was 2008 without studying. Second attempt was 2011 with a 10 week review course. Third attempt was May 2014 after studying for 5 months. Fourth attempt was July 2014 after studying for 7 months and adjusting my time management.
I used the following sources:
Lindeburg PPI FE Review Manual
PPI Electrical - Discipline-Specific Review for the FE/EIT
PPI FE Exam Review - Electrical and Computer Engineering
Along with some internet research and youtube videos from Raiya Energy
I would suggest purchasing the NCEES practice problems. I did not buy them, but I think they are worth the $40+ shipping.
I considered taking the other discipline as well, but half of the material I never took a class in at school and even if I did, I was not interested in learning it (statics, dynamics, chemistry, ect). Everything on the Electrical test (except computer systems - hardware, software, networks), I had a class in school. It took a while to relearn the material, but it was well worth it. I am currently studying to sit for the Electrical Power PE in April 2015!
Good luck, you can do it! You must be persistant. Failing is only stepping stones to success. Quitting is the only true failure.