I would take an SAT or ACT prep course on understanding how they structure the questions... this can increase your score a lot. It did for my son.
Other than that you are probably set, especially if you may play baseball for the school.
Thankfully, neither your race, nor anyone else's matters at VMI... it is truly a merit-only based school. That is one of great things about it. When you graduate, you know you earned it... no one gave anyone anything extra, or kept it from anyone, because of the color of their skin. Good luck!