I presume based upon your info that you are a current 9th grader. Your extracurricular activities are impressive for your age and I can see that you have taken a highly rigorous course load and have excelled. If you can write about your background in an engaging way, do well in your SSAT, and maybe even apply as a repeat freshman, I see no reason why you do not have a shot at these schools. While Deerfield, Exeter and Lawrenceville will unfortunately be aware of your status applying for financial aid and might reject you if they cannot provide sufficient aid, Andover is need-blind and would likely provide sufficient aid if admitted. I am also applying (albeit as a new Upper) to Andover, Deerfield, Choate, either Hotchkiss or St. Pauls, and a safety, so I am in a similar position as you are, and am also Korean, which I hope does not affect my chances too greatly. Best of luck to us both!