Not only do you come off as arrogant, but i think the thing about the bell curve works against you, it provides more evidence that you are a very average student. On top of this, as an international student it is really hard to get into a top 30 school. I don’t think you would get into one with those stats as a domestic student either.
Astronomy and archaeology are not only studied in the US, i am sure you could find a very good school with your grades, but top 30 looks doubtful. You could always go to a college for a year, get good grades, and transfer.
Good Luck