I get the jitters too, the first 5 or 6 arenas I do. My hands shake uncontrollably and my heart races. I even get migraines sometimes. After those few, I'm gtg. I suck sometimes and other times I'm amazing, and I have sub-par gear for pvp, as I prefer pve. It's hard getting someone to help you though, if you can't pull your weight, because you drag their rating down, and it's not cool to just lose 10 matches a week, if they had hopes of an armored Netherdrake.