I am schedule to attend Drill Sergeant School in September. What is your advice to prepare for the prestiges school?

First requirement is the talent of YELL your ass off.

Make sure that you're in great shape because they will run your rear end completely off as if you are a basic trainee.

Learn the top 3. Position of Attention, Rest Positions at the Halt and Hand Salute. If you know those before you get there, you will have a leg up on your classmates.