RE Code 3 and a Court Martial -?

I was seperated from the army under chapter 14 general with honarable conditions for failing a urinalysis. I probably would have been retained as i requested during my article 15 hearing but while on extra duty i broke restriction and left base for a night. I was subsequently court martialed for disobeying a direct order and my discharge was carried through. On my dd 214 i have a re code 3. I was also made to sign papers during my court martial ,one which said i was inelligble to reenlist for 2 years. Its been one year and i really want to rejoin. what are my options and can i ??