Chances at admission to Harvard?

I would really love to go to Harvard. I am an honors student, with the exception of math, with a GPA of 3.9. I am in History Honors Society, Science Honors Society, French Honors Society, i will apply for both Science Honors Society, and National Honors Society. I play both Varsity Baseball and Football, with a good chance of being captain of the football team next year. I am also an active member of FCCLA, a community based club at school. I also volunteer at a school for children with cerebral palsy. I work as a self-employed tutor, helping out some kids on the football team. My grandfather, great-grandfather, and great uncle all attended Harvard, but I seriously dont know how much that will help. My SAT's, out of 1600 were a 1400. i am in Ap History, next year i will be in AP Stat, Ap Lit, Ap French, and am looking to take a college course on Ap Macro and Micro Economics. nationality wise, i am an interracial child, made up of asian and white. What do you think my chances are?