Nervous..

I go to tutoring classes for the Tachs exam to get into catholic high school and i took a test last 2 classes ago and i got a 75% on it. My mom , who's a cyco , is making me retake it. She doesn't understand that it a tutoring test. Im so nervous right now , its unreal. I have to study all day and plus my private tutor is comming today to review with me everything then tonight im going in to take it. Im extremely nervous right now.