<p>OP I think your biggest job will be carefully researching which schools to apply to. I would be hesitant to say that top 20 schools will be matches as you are an international applicant who (I assume) needs financial aid. Don’t just apply to a list based on the rankings. I agree with happymomof1 who recommended a group for you to contact in South Africa. You really need some idea of where kids with similar stats were admitted and what aid they received. </p>
<p>There are many schools outside of the top 20 that will give you a great education!!</p>