Ok so i really want to switch from arcane to frost but i hear you need at least 11% haste and when i was arcane i bought hateful off pieces with crit chance! AHH so i dont know what i should do if i want to switch do i totally start over or what? i know arcane is for retards and im not really good yet but i wanna play frost.

also could i get some good keybinds for a frost mage i would really appreciate it i am going to switch a and d to strafe so any others?

thanks to everyone who can help a scrub out.
BTW this is for PvP.