So I have to ask... if you pushed recruits, why is OCS stressing you out? For one if you look at the gouge knowledge most of it is what was what enlisted learn in boot camp with a little more added here and there. Idk you rate but if you are an FT, ETV, OS, STG, STS,QM, or a few other rates the tactics and navigation portion should be your current I rate knowledge. As for the IST and PRT if you are currently passing with a Good low or better what’s to worry about? Running 3 miles in 30 minutes is still slower than your time to run 1.5 on the PRT. Back to pushing boots... you should be well rounded in uniform and personal inspections. I don’t think you have a lot to worry about, polish up on the details and I have faith you will be successful.