New Jersey Real Estate Group (PSI Exam Prep)

Hello to All, 

I am Matthew R., and I am a new member to the Biggerpockets platform. In addition; I am currently studying for the NJ real estate exam. I am having difficulty understanding a few of concepts in the book. I was wondering if anyone knew where I could find a study group or a place that could simplify the understanding of the Fundamental sections.  One of my biggest difficulties are the Government Rights and Land Use, Math, Finance, and Transfer of Title and Closing. 

Thank you!