1) if you find your HP in the 50-60% zone you need to start backing off / fleeing. even if you think you can take them out before they take you out - dont do it.
2) if you use an important defensive cooldown (serenity, spirit walk, ignore pain, etc)- take it easy until the cooldown is back up again
3) only kite into territory you have already been through. this also requires you kill every mob that you come across on the way.