Healing is my least favorite role, yet I end up doing it all the time. Moira helped a little bit but I really hate feeling sitting their healing everyone else who is enjoying the game while I sit their bored. It also is extremely frustrating, and it makes me want to quit playing all together.
I've recently just stopped playing healer and just pick what I feel like and often I will see messages like "healer main going dps gg" or something else that is really tilting.
Gotta love Overwatch.