Q: in USA from 2-22 y/o + work visa. I am ONLY allowed interview abroad?!

I came to this country at three years old my mother recently married an American citizen three or four years ago the office of immigration is only allowing me an interview in my home country I am not sure what to do my lawyer has charge me thousands of dollars and we have gotten nowhere can someone please tell me why after 20 years of being in the United States and working with an author rise work permit why is the only option to have my green card interview back in Brazil. I came to this country at three years old my mother recently married an American citizen three or four years ago the office of immigration is only allowing me an interview in my home country I am not sure what to do my lawyer has charge me thousands of dollars and we have gotten nowhere can someone please tell me why after 20 years of being in the United States and working with an author rise work permit why is the only option to have my green card interview back in Brazil

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