So, ask yourself, how does anyone know that RACE plays a major role in college admissions? We know because "race" has been written into affirmative action policies, and educational institutions admit to "considering race" in selecting applicants.
Well, guess what? "Gender" is also written into affirmative action, and educational institutions admit to "considering gender", too.
Here's a piece of text from an ACLU site for you. Maybe now you'll believe it:
Affirmative action for women
An ACLU briefing paper on affirmative action reports: "Six million women have received opportunities in employment and education directly because of affirmative action programs. Between 1970 and 1990, the proportion of women physicians doubled from 7.6% to 16.9%. From 1972 to 1979 -- the years when affirmative action programs were most vigorously enforced -- the number of women becoming accountants, lawyers and judges, and school administrators increased substantially. And during the last 10 years the overall number of black professional women grew 125%." (7)
I don't know how old you are, but I remember in the 70's people complaining that men were being denied access to medical schools, for example, to make room for less qualified women.
I am not trying to take away from anyone's success, including yours. I'm simply pointing out that African-Americans are not the only recipients under AA.