You are an African American who is living abroad. Both of those diversify the class that AOs are putting together, and so they are helpful to your application.
Whether or not the AOs who read your application will know your high school and the grading predilections of some teachers in your country is much less certain.
They will however know that most of the accepted students from foreign IB schools will have 40s on their IB total and mostly 7s on their individual scores. Obviously, these are the best students in the world from one of the most difficult academic programs in the world, but what would you expect of the schools you name.
In my experience, it’s really difficult for students to see that prestige and great education are not synonymous. Whether or not you get a great education is dependent on what you do at a school, less so the school where you do it. Prestige should be way down on the list of criteria for a #1 school because prestige means so little to anyone but the student and the family.
You might begin by looking for schools your family can afford because you’re not going anywhere you cannot afford. If you need help with finding such schools, let us know.