I can't reset my iPod Nano through Apple Music

I have a 8GB iPod Nano 4th Gen which previously was loaded with some music from my iTunes (mostly just music ripped from my own CD collection, not purchased). I upgraded my Macbook Air to OS Monterey which obviously now has Apple Music. Although Apple Music recognises my iPod, I can't seem to manage my music on the ipod. I can't delete the music by manually selecting the tracks and hitting "Delete". I can't drag and drop albums onto the iPod and I can find no way of resetting the iPod to factory settings with no music on it so as to link it to the Apple Music app. I have tried reloading iTunes but Mojave will not allow me to run the older version of iTunes so I can't reset the iPod.

Do I have to find someone with an old Mac and try to plug it into theirs and see if I can reset it to factory settings or will that not work or is there another work around to reset it and then link it to Apple Music?

Yours,

Very Frustrated....