Chances of getting into OCS.?

I just enlisted for a three year contract with the US Army as an E3 Petroleum Supply Specialist and need to know if I have a realistic chance of making it into OCS. First I'm 26, African-American, and I have 78 credit hours. I've worked in factory for the last five years. Prior to that, I was a Package Handler at Fedex and a college student with a GPA of 2.1. Before that I was home-schooled and have a GED. I have about 11,000 in outstanding credit debt that WILL be paid off by the time I leave AIT. Five speeding tickets in 8yrs. Lastly, I scored an 86 on the ASVAB and my lowest individual skill score was 123. I have no problem retiring as an NCO but I would like to know if I could make 2ND LT. If I can make it, what can i do to improve my chances? I already plan to enroll in the green-to-gold program but I can't find anyone who actually went through the program. What can I do to be a effective officer candidate?