Help me become a citizen

I Christopher Ludvigsen from Denmark have a dream of joining the US Air Force as an officer, but in order for that to happen I must first be a US citizen. I love America and always have for as long as I remember so I don't just want to join any military, I wanna join the USAF The process of naturalization requires me to have been a permanent resident and green card holder for five years; not only is this difficult but I would like to start my career in the Air Force as soon as possible. Currently I am residing in MS, USA as an exchange student living with a host family. My plan was for these people to adopt me and partition for my citizenship. Well; turns out that I the adoption has to have been completed before I turned 16 which unfortunately happened last August. Now all I ask is for the American government or whoever this concerns to look at my case and make a single exception and allow me to become a citizen somehow more easily. Maybe even let my host parents adopt me and after two years apply for citizenship. Two years that I would expect to spend in college getting my bachelors degree.
All I wanna do is serve in the American military and have a good life in America. Thank you
-Chris Ludvigsen