Hi, Afe.
I understand that you're nervous. The whole process is unnerving, especially for international students (I am an international student myself, from a Third World country in Latin America). I would advise you to contact a professor at Notre Dame or any other university that you're interested in and ask them directly about how compelling your profile is. Make sure to include how many hours/semesters of languages' studies you have. I've had a good experience with Dr. John Fitzgerald in answering my questions about their program.
Most of all, don't give up! I'll be praying for you.