I have aphantasia. And also extreme crippling insomnia, it has been the last 3 or so years that i learned that other people can actually visualize at all. I always thought it was a metaphor. In my searching about a way to potentially improve it I found this article.
https://photographyinsider.info/image-streaming-for-photographers/
And it absolutely cured my insomnia. I can sleep easily for the first time in my life. Didn’t do a lot for the aphantasia but i did manage to successfully get an image or two a couple of times. Mostly i just love that i can finally sleep without hours of lying in bed beforehand.
I’m sorry i don’t, i just did the eye rubbing thing.