Has anyone ever shoot the ICE Gun course (immigrations customs enforcement)?

I'm going back to the range next week. I have been away for a year. I'm beyond rusty...but I gotta do this to get my job back so I'm trying to requalify. I just gave birth to my 7 week old son. I'm in Law enforcement. I'm a lil nervous and I need some advice for shooting the range. Can you help?