Just take your time and you should be fine. Not sure if you are a confident machine polisher but if in any doubt just spend some time watching some videos, make sure your pressures are correct (draw a line on the backing plate so you can confirm correct pressures), keep speeds consistent and make sure you work up and down through the speeds to correct defects and to refine. There is no point spending time machine polishing only to be left with holograms all over the car due to rushing the job. Brake panels down into smaller sections, they are all too big to machine polish effectively as one.
Set some good time aside over a couple of days. Don't rush the job, just do each panel the best you can before moving on.
Enjoy