I took off, approximately, the same amount of time. I failed the nremt text the first time but it was because i didn't study enough for it. Then, i seen on here that JB test prep helped people pass their NREMT so i bought the program and gave it a shot. Surprisingly, I PASSED! 109! I highly recommend JB test prep. Some people say it doesn't work for them and others, like me, think it's the best test prep out there! I almost only used my book to study my rules of nines and medicine dosages (charcoal, epi etc.) Good luck on your NREMT-B!