Everyone learns at a different pace. The tricks you should get down are the ones you are personally comfortable with trying. If you aren't confident in yourself in trying a trick, wait till you are. Pushing just because you feel you need to get certain tricks down is only going to lead to injury. There is no timesheet when it comes to learning tricks. Take your time and it will come.
Get totally comfortable in the air before trying any spins off a jump. Get totally comfortable sliding rails/boxes before adding tricks.
my first park year i just did 1's boxs, rails, and safety 's then did 3's and mutes as well as skiing switch, but it doesn't really matter, do what you can keep having fun, who cares about timeframe.