for me -
- totems go down before every fight unless its a single mob in instances - you can drop them as you run into position (full 16 takes... 4 secs omg!).
- Always have watershield up...
- Pvp - groundings and tremors poision/disease cleansing always, then stay in range of them. re-drop if needed.
As far as rerolling - questing/grinding from 1-60 again will not really improve your game as much as pressing on from 60 and working out the kinks - you might try playing one of your shaman solo for a bit to get an idea of how to play the class.
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