My Visa Was denied Under INA 212(A)(3)(A)(II)

Hi,I'm Alejandro and a month ago I had my interview at CD.Juarez, well at my interview my visa was denied under this code 212(A)(3)(A)(II)because when I was 14 I got arrested twice for being in stolen vehicles. I had 3 felonies and 2 misdemeanors, since then I haven't committed any crimes. But the people who I got arrested with, they were involved with gangs. So the officer gave me a charge for gang involvement. At my interview, the officer that was interviewing me ask me if I had ever gotten arrested? And my notary told me that the charges I committed were not going to appear in my record because I was a minor. So I told him that I didn't. He got mad and he asked me again and I told him the same thing until he told me that I did got arrested before. In that moment my heart froze and I said to him that I did. So he gave me another appointment date. I went to my new interview and he asked me the same question and I told him that I did got arrested before and I apologize to him for lying, but then he asked me if I was involved with gangs because I had a charge involving that, I told him that I wasn't but he didn't believe me. Then he told me that He needed my police arrest reports from my arrests and the court documents regarding my charges for conspire to commit crime and participate in criminal street gang. But I was never in a gang or had never gotten arrested for being in a gang. Im 17 now and I live in mexico. And as you know my record is going to erase when I turn 18. Plus I did all this when I was a minor So I believe is not suppose to affect me. But it is? I lived 6 years in California, and I enter the US with a visa B-2. All my family lives in the US except me, my sister and mom. My family, mom and sister are legal residents except me :( My mom and my little sister need to be over there or else they could loose their residents visa, but they cant leave me here because Im disabled. I had an accident couple months ago and I cant 'walk' and I have no family here to stay with. So you think this could be reversed or appealed? PLEASE HELP ME! I would really appreciated Thank you for your time.

ps

This happen on Jan 4 2012,

Also The immigration officer send me a letter after he received through DHL all my charges of my arrests. He replied through DHL telling me my visa was denied under the code 212(A)(3)(A)(II) this happen on Feb 14 so is not that long ago. Well I hope you can help me because I know there is something I can do.