You are under the 'control' of your J program sponsor.
You should talk to an attorney to make sure that you don't 'blow' it.
Franco Capriotti - Senior Legal Counsel & Former Professor of Immigration Law - Capriotti International Law
FIRST 15 MINUTE CONSULTATION IS FREE (SKYPE or phone only). e-mail to set up a time that is convenient: firstname.lastname@example.org
NO MATTER WHERE YOU ARE, WE CAN HELP. Our services are not limited by State, nor International boundaries. Our licenses allow us to represent people worldwide.
Do not rely completely on information you get on a website. It is always wise to consult personally with an immigration attorney before taking any action.
Consider contacting one of the attorneys on Avvo, or www.ailalawyer.com - If you are low income go here: www.justice.gov/eoir/probono/states.htm or http://www.immigrationlawhelp.org/
FORMER IMMIGRATION LAW PROFESSOR -- LEGAL DISCLAIMER: This answer is offered for informational purposes only. It does not constitute an attorney-client relationship.