I have ADHD and I have to listen to music to focus as well. I focus less without music. Even when I'm half singing along in my head somehow that makes me stay f

I have ADHD and I have to listen to music to focus as well. I focus less without music. Even when I'm half singing along in my head somehow that makes me stay focused, so I don't get bored and drift off. Interestingly enough I'm bad at multi tasking. I'm bad at single tasking too. But doing two things at once normally means I'll get neither of those things done. Music is an exception for me.