I have a fair amount of movement in my right (affected) hand. But my sensation isn't great, and even more troubling is my lack of proprioception. If I can't see my hand, sometimes I forget where it is.
I've heard that visualization might help. For example, when I wash my hair I use both hands, but concentrate on visualizing kneading my hair with my right fingers.
But sometimes my mind wanders. Then I realize that something doesn't feel quite right on my right side of my head. When I lower my right hand and look at it, I realize that I've been washing my hair with the back of my wrist.
7 hours ago