Becoming a certified trainer

Hi ladies, can anyone that is a CPT (certified personal trainer) send me any info regarding the NASM exam? I’m looking to take it soon but I don’t have any prep stuff. I’m also moving half way across the country soon too and need to save as much money as possible. I’m already very knowledgeable on personal training. I just need to prepare for things that I don’t know. Please help a girl out!!