They don't make them in 182, only 165-175-185.
I'm roughly 5'7", 130 lbs and I have the 06-07 ARV (very soft) in 175. You are very small, but you will grow, and seeing as you are just starting to freestyle ski I assume you don't want to buy a new pair if you out grow them.
So my vote is keep the 165's, and enjoy them. They're a rad ski.
Also, don't think you "aren't good enough" for the ski. If any tool asks you why you have ARVs, just tell them to shut up because you get a killer deal.