Playing a healing class always feels like a huge responsibility. Unlike a DPS class, people notice if the healer is crappy. Death is somewhat hard to overlook. Which is why I have always tried to optimize my Druid as much as possible.
Though I did all my research, gotten my talents up to date, gemmed and reforged my gear, did all the things I could do to be the best healer I could be, I was still hitting a wall.