Boozy Writers Withering Away in Unheated Garrets

It occurs to me that when I write poetry, I am seldom inspired by anything 'bright' and 'good.' I usually write when I'm feeling down or angry. Negative emotions seem to fuel those particular creative fires, and so I wonder if I need a more stressed and negative environment to write anything at all?  It's an interesting question, at least from my point of view. And if it's true, it might explain that old trope of the boozy writer whithering away in an unheated garret.

If there is any truth to it then I'm afraid I won't ever be a successful write. I enjoy comfort far too much to sacrifice it for 'art.'

Does that make me weak? Or sensible?