How does one become an astronaut?

[Victor747]

Hello everyone. I am a student from Turkey and am 18 years old. I am currently preparing for university. I wish to become an astronaut one day. However I am not sure what sort of path I should take, should it be possible. My English is pretty good, and I intend to improve it even further. I assume I will have to become an American citizen and start my education from scratch there, as my marks in Turkey shouldn't matter much in America. I know that the maximum height limit is 75 inches long, and my height is exactly 74.8 inches long. I intend to take steps in order to stop my height growth. I also like sports and am bodybuilding. Could anyone help me, or direct me please? Any help would be appreciated!