Along with @Calliene’s suggestion to digest all the posts on this forum - especially those “pinned” at the top of the page, reading Mary Anna Dennard’s book, “I Got In!” is a great place to start. Being female makes the odds a bit tougher, but you can still do this. Many programs purposely try to assemble a diverse group of students, from all kinds of backgrounds - and some pride themselves in developing artists who did not enter MT training as soon as they could walk and talk. Successful performers have come from all manner of beginnings.
Your athletic training can be a great source of strength for you. Based on what you have posted, one can assume you have learned how to work hard over a long period of time to reach a goal. You have learned the all-important value of team work. And if you’re captain of the team, your coaches and teammates must see something special in how you go after your goals and inspire the others on your team. AND it looks like you’ve been able to be a good student at the same time. Take those strengths and go after this next goal. Go Girl!