I don't consider myself an artist either, but for several years I journaled by doing a sketch and a haiku.
The form requires discipline to fit the thoughts into a 5-7-5 line format.
The Geneva Writers Group had a master class with a real poet, Anthony Anaxagoro. He had us write down 10 nouns then add an adjective. We were then to take our favorites and write a poem. I fell back on haiku.
The silent pen lay
next to teh waiting paper
Failing to give it life.