Hmmm, yes, I've sometimes written as well to get things out of my system and writing has sometimes been triggered when I was quite low.
At the same time, when I'm very depressed I sometimes feel so numb and my mind shuts down so I can't get anything down on paper.

I suppose it's an individual thing when one feels one can write.
I'd like to start again. It might help.

I hope you can be creative again without being too depressed at the same time!