You’re definitely not alone. I’ve been collecting MP3s since they first began, choosing 1-2 songs a night to leave downloading over dialup. I still have ever MP3 I ever downloaded short of deleting the files from that period where you’d download a song on IRC and it’d be something else named wrong on purpose.
I do use Apple Music for my family/kids, but my MP3 collection is one of my prized possessions and the basis of nearly all my daily music listening.