Taking the Beginner Exam

I am very nervous about taking the exam. I am two weeks out exactly from taking my exam. I have been studying like crazy but I feel like I still haven't studied enough. At times I feel that I am studying to much and at other times I feel like I am not studying enough. If anyone can please help ease my mind about taking the exam and what I should be trying to focus on. I would really appreciate any feedback! 

Thank you!!