I realize that we already have a post about healing nightmares on this board... and while my story would be considered a nightmare, I have a bigger question: How do you get past that nightmare time?

I was doing Qarn and working on lvling my White Mage. We got as far as the first boss and we were repeatedly wiping. First time was because no one was protecting me from the bees. The second was due to rezing the tank because the wound up Doomed. Third time for similar reasons... then we have a DPS who is overly squishy and would repeatedly bite it.

After about the fifth try we decided to call it a wash. I feel like I did everything I could, but it wasn't enough... so how do I get past this feeling that I'm a crappy healer?