IMO, driving with the tank is the easiest. The biggest thing I had to overcome was getting used to using keys to heal, even when I couldn't see what the healer was doing. Once you get familiar and see what you're able to easily heal through, it becomes trivial. I do the CoS gauntlet in 2 pulls now. Partly because my tank is well geared, partly because I've wiped on that enough to know I can't heal fast enough for 1 pull (wtb moar haste kkthks). So just remember it's a learning experience, you're already doing the best thing you can do, which is come here and see how others are doing it.

Are you tanking with a bear? I posted my tanking macro in Fur's mega macro thread if you need something thats spammable so you can focus on watching your HP, heals, or whatever else.