Writing in Pain

I am so tired of taking shit from people! So tired tired tired of it! Can anyone save me? Please!

I think there is a myth saying that all artists, writers, musicians, or whatever, are performing their job much better when they feel bad and down. Active alcoholics are creating masterpieces while they get depressed and drinking. I do not know if that is true. Somehow maybe it is, because if we would be without experience of the painful life we would not be able to write about it. And all the suffering we are writing about is probably what people are identifying themselves with, because life is suffering.

But somehow I think that authors are putting themselves in more pain that other people... or at least accepting to stay in more pain that other people just so we can use it in our writing. Or am I just fooling myself? Am I just thinking this because I am a week person unable to change my life, making excuses to stay in pain? Or are we just thinking in a different way about pain, the same pain everybody has in their life?

What is the correlation between writing and pain?