Are you currently logged out in the gear that you raid in? I see a bunch of PvP gear- including a bunch of S1 gear and even some Stalker's chain. If that's the gear you plan on raiding in, you're going to have to replace just about everything.
Full S2 will help. However, I suggest also working on Arenas to get some even better gear. S3 starts to show some Hit rating, which you desperately need.
But if you do get full S2, you're going to need to gem ALL hit. You'll get 6 sockets, so you'll need to get 4 +hit gems (32 hit total), and then 2 purple gems to achieve the meta requirements.
And while you're getting your S2 gear, keep working on badge gear. You can pull your weight all the way through BT with it.