Hello, You can take CSET . You can call and register for exam. if you dont have SSN they will give you special number to register for exam. And Im sure other exams you can take (I graduated highschool in korea almost 30 years ago.coulnt go to college )but i passed algebra exam 2years ago.I want to have teaching credentials in my future. Im in new mexico .if you want to go to community college as a visiter and can take up to 6 credit classes in community college (same as in state tuition cost).. there is a will,there is a way ( i hope you understand my brocken english)