First thing you do when you get to the Match is inform them that you are a new shooter (this goes for any type of competition).
That way they will asign you to a firing point with older shooters to help you get started RIGHT and Safely and scoring.
I'm a GSM Master Instructor, and I and most MIs I know are lax in the coaching rules for new shooters. Not for calling shots and such, but help with positions, using the slings, and inital sight settings.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071