Yeah, you'll burn out if you don't take on a more relaxed approach to tanking (not saying you don't already).
If people pull aggro, let them have it. What's the worst that'll happen? They kick you and you have to go back into that instant queue.
Of course, I'm not suggesting that you don't do a good job at it, I'm just saying that taking on more responsibility than is needed is bad. Bad for your mental and physical well-being.
If someone pulls aggro through your optimal AOE rotation (Rend, Thunder Clap and Cleave at those levels), it's not your fault, it's theirs. They may not see it like that, but that's because they're hardcore morons. Brush them off, leave, or (my favorite) roll out the drama llama for some funnies.
Just never let it get under your skin. You will burn out so fast.
Edited, Jan 19th 2012 12:45am by Mazra
____________________________Please "talk up" if your comprehension white-shifts. I will use simple-happy language-words to help you understand.