to become an agent yourself in NJ you will need to take a 2 week course and pass a state test. then you will have to join with a broker who will split the commission with your. I can help you do this at Keller Williams. You will have to have legal status as a US resident to get your license. My friend was on a Student Visa and could not get his LIcense. The total cost to get your license and join with a broker will be around $1000.
When you get your license they do not teach you anything about buying property so you will still need some experience from an agent or another investor that can guide you in the process and evealuate if you are getting a good deal.
I have invested in properties and work with a few investors and would be happy to help you