I went through OCS as a prior 2nd class. Going into it, I wouldn't say I was cocky, but was comfortable going into it with my background and figured I may have an advantage over others. I don't agree with Brett often, but definately agree here. OCS is NOTHING like boot camp. I thought boot camp was a cake walk when I went through it. But after going through OCS, boot camp is joke. I doubted all those that said I would be scared of my D.I., and I was right. I wasn't scared, I was terrified! And you will be too...Just go in with a positive attitude and don't try to do too much. Definately don't act like your better than the non-priors, and you should do fine.