My advice? Forget all this OCS and Officer stuff for the time being. You've got to make your way through Basic first, and that's not something you should look past or take lightly. Focus on the day, the task, and the challenge at hand. There will be time to think about an Officer's problems when you get there. First, you've got to earn the right to be called a Soldier.
Good luck and Godspeed, and thank you for what you're doing.
Oh, and take a personal word of advice from an old man: KEEP A JOURNAL! Or a diary, or whatever. Believe it or not, one day you're going to look back on this period as the best time of your life, and young men take that for granted when it's happening to them. Take pictures, write a daily journal entry, and enjoy every moment.