Stop in for a cup of coffee

Wow, went to find out how long the wait is to schedule a road test for my daughter. First apt. at the location I wanted wasnt until the end of August. I had no idea they are booked that far out... Not good, so I ask if there was anything sooner at a different location and they said Wednesday April 3rd but nothing after.. So my daughter is really stressed now, she has had her permit since last June but wasnt ready to hear the test would be in 2 days. I guess I wasnt expecting that either.
Is there a limit to times you can retake it? Think of this one as a practice. If she passes- great. If not, she will know exactly hat to expect next time.