Replying to Trick Progression

I'm a serious backcountry skiier that is trying to do park alot more now. I have 3's down 100% of the time, and am working on grabs. Im wondering when I should learn grabs, before or after working on the extra rotation? At what point should I learn backflip/frontflips? Before or after cork/bios? Wheres the fastest and easiest route to gto from here, in your own experience? Thanks for the time, +k for not being a dick and callin me a n00b haha.