There's been an outbreak of worry among druids concerning the new guardian spec. That's not surprising, as the spec is new, its rotation is different, and bear mechanics got a substantial overhaul as well. Resto wasn't changed anywhere near as much -- indeed, its existing mechanics got easier, leaving us plenty of time to engage in Typhoon Wars with DPS we don't like (more on this when I feel like writing something really, really evil) -- but I think two weeks in a sort of clinic for both specs is warranted.
Bottom line: After the many tweaks it's had on the beta, active mitigation tanking is not as scary as it looks. This is not to say that the bear doesn't have its issues: Arielle outlined several here over on the (Guardian) Consolidated Feedback Thread that you should visit if you want to leave feedback for Blizzard on the problems you're having. But before you do that, let's make sure that the problems you're having can't be fixed some other way.
This, my friends, is your new mantra as you navigate the sociopolitical conflicts of Azeroth:
The rage extends life. The rage must flow.