1st Time Racer
All of the above are good. BUT
In your lst race what are you going to remember in the course? Practice, coaching, NASTAR all will help but if you don't have time before your lst race then what do you do. You state you're a good piste skier. OK ski the course as fast as you can UNLESS it is steep and a little gnarly on top and then easier in the middle and end. If this is the case Ski the Top and race the bottom.
Take a look at the course, what are you looking for: (for a beginner) ( I don't know if the race is a slalom, SG or GS) but look for rythymn changes, i.e., the top turns in a GS might all be the same distance/width or rythym and then look for the changes and then you will know where you are going to have to be ready for the changes.
Usually (with the exception of NASTAR) there will usually be a trick
gate, most often times before the flats, or before the finish. This is the gate you need to see/visualize and figure out for your run.
Example: Super G at Mammoth, the 3rd gate from the end (just before theflat finish) there is no turn thru the last 2 gates and the finish, this is hard to see but if you see it and ski it that way you can win the race on this technical gate all by itself especially of c ourse if your competitors don't see this non turn gate
ONE TIP. (While Racing) LOOK AHEAD - AT LEAST ONE GATE EVEN BETTER 2 Gates but on your lst race One Gate Ahead will be fine. Simply put, if you look at the gate you are going around then you will be LATE for the next gate, this will compound itself and you will get so late you either won't be able to make a gate or you'll blow off course or you'll be so slow you'll come in almost last.
BEGINNER FIRST TIME RACER LOOK AHEAD AT LEAST ONE GATE - NOT THE ONE YOU ARE GOING AROUND.Good luck