The written test is fairly straight forward and common sense. My instructor in South Texas covered most of the material in 3-4 hours.
No need to be nervous on the shooting phase consisting of 50 shots at ranges from 3 yards (20 shots), 7 yards (20 shots) and 15 yards (10 shots).
My wife was pretty nervous so I ran her through the shooting phase probably half dozen times (she probably shot less than 20 rounds every 3 to 4 years). She scored 93% on her qualification. The practice was more a confidence builder as she has always been fairly accurate but slow. The qualification is supposedly timed fire but they were pretty lax.