aaron, your situation sounds really similar to mine. (I'm Korean too, and I came when I was 4!) and I have a brother that is your age but fortunately he was born here.

Unfortunately it seems that these GC apps get denied all the time, which is what happened to my mom...

Right now all we can do is wait around till the DREAM act gets passed... unless you want to go back to Korea and live there. (From what I read on the forums, you don't get banned until you're over 18 ). My guess is that if you're anything like me, you're much more Korean-American than you are Korean. We just might not fit in back in the motherland.