Lots to digest here. While I’m empathetic to what sounds like a rough situation in your country, you’re effectively asking that a school accept you and pay for your education, room and board and existence. And, effectively in lieu of doing the same for a student in their home community, town, state or county. Why would they do this?
If your story is so compelling that it will grab the attention of a school, I would focus on articulating it as well as possible. if not, I would think about “plan B.”