My handwriting was terrible all throughout school, and then I avoided it pretty much entirely for a decade or two. I'm not sure what's left can really be called handwriting. I guess maybe it still works to help recall, but it's barely useful as reference.
FWIW My handwriting (and the experience of writing) improved quite a bit when I switched to fountain pens. I always used to find writing a bit uncomfortable physically, and difficult mentally (due to ADHD) but fountain pens improved the experience somewhat.
You don’t need so much force to be applied to the pen compared to other writing instruments and the more comfortable writing experience helped my ADHD brain better tolerate it to.
