Trying to get a driver's license

Before begins this semester, I enroll in a drive school, I am trying to get a driver's license. M y parents want me to learn to drive since I enter college, but I am afriad of driving, I don't think I will feel good when I drive nor I think I can easily finish the test. But they keep asking me to join the school. Now I haven't had any test, but I am still worried about the test as I am lack of sence of direction. Also, I think it is hard for me to understand the structure of the car as I just have a book on my hand. I have never notic what is in a car when I take a car.