What should I do to get into Juilliard?

I am 13. I have been playing the flute since 5th grade. I am going into 8th. I am good but I want to be better. I know that is really tough to get into and I know I barely have a shot. But anything is possible.I am one of the best in my school. I have been in Summer Jazz playing the flute(I know its not really a jazz instrument but still). Also I have played in our pop band. Also I play the Tenor Sax. in jazz band. Both summer and in school. I plan to go into my state orchestra next summer for their summer program and then be in the orchestra. I have a 4.0 in school. What are some things I can do to get at least a little more of a shot. I have done my history day project on Augustus Juilliard and the School. So I know a little bit about the school and its toughness.