You must first become a lawful permanent resident. There is no direct path from a nonimmigrant visa to citizenship. Your length of residence and current status do not give you a basis to seek lawful permanent residence. To become a lawful permanent resident, you would need to have a family member or employer file an immigrant visa petition on your behalf. You can read more about immigration at http://myattorneyusa.com/immigration-to-the-usa.
Answered on Jun 06th, 2016 at 3:50 AM