OHHH I got the best advice a couple of weeks back that has helped me SOOO much with the cluttered mind. I was chatting with a friend who also has fibromyalgia and complaining that sometimes my mind is SO all over the place that I can't sleep. She said the same thing used to happen to her, but what she does is to begin repeating the Articles of Faith in her head. You see, she figured out that Satan doesn't want her to sleep and keeps her mind racing and if she chooses to do something that forces him out, she not only calms her mind, she can fall asleep! AND IT WORKS! I'm finding it much easier to fall asleep and I only have the first FOUR A of F memorized. But when I force my mind to concentrate on those, it calms down enough to sleep. It's pretty cool. I have been thinking that I need to work on memorizing more words to be repeating as well.
I suggested songs to my friend and she said they don't work as well for her because they take her back to a time when she had a great spiritual experience with them. And that's true for me too. I tend to "sing" in my head and I long ago developed the ability to sing and think about something else, so singing in my head doesn't work to calm my mind and help me sleep. However, I can attack bad thoughts with songs during the day and have that refocus my cluttered mind. That came from Helaman when the armies had to attack from the side, rather than the front. It's my new battle strategy.