Hey, I graduate may 24 from nursing school...finally! I got the job in CTICU. Now i need to study for the GRE. Any suggestions (books, online tools...etc)

Also, I'm looking for some classes to take. I'm wondering if a neuroscience class would be beneficial or a waste of time and $$.

The course catalog describes the class as this: HS 720. "Integration of
neuroanatomy and neurophysiology of the central
and peripheral nervous systems with human functional
abilities."

Let me know what u think.