High school football?

Right now I'm in 8th grade. I'm 5'6 and about 125 pounds. I want to play cornerback for high school. I went to booker t. washington senior high the other day to talk to the AD. I told her that I wanted to play football for the school but that I wanted to stay here for high school. she told me that I ahd to wait until next year in order to show her my shedule so she knows i go to school. Some days later I saw that they are going to have football jamboree on may 29. I emailed the AD and she told me that she doesn't remember me but that the date to turn in the insurance information ped but that If i wanted to, i could still turn in the information to her for next year. I also talked to the head coach but a little later he signed as istant coach for UM. now i don't know what to do in order to try out for their football team. Football is my dream and My one love! Please help