I live in Florida, although the test is nationally based so I guess it doesn't matter where you live...but I used the study guide from Lc-ready.com and read through my EMT book.
I'm surprised you have to retake the exam, why didn't your NREMT license qualify you for a Florida license?
Contact the school in which you completed your EMT training at. The same thing happened to me and I contacted the program director, paid $65 and was able to take the psychomotor exam with the summer students.
My exam stopped around 55-65 questions. I didn't see the exact number but I was only...