I learned that data was on the top side at a very young age. I put a sticker on top of a CD and a couple years later peeled it off and the image came off too. I tried to play the CD and realized my mistake. I think I was around 7. Luckily it was just kid’s Christmas songs and nothing important lol.
ReVanced has been working for me. I followed this guide since it’s not as straight forward as Vanced was. Sorry that it’s a reddit link :(