I still have almost everything from when I was in elementary school onwards lol. A few specific drawings and comics I've lost track of, but I have a few drawers full of childhood drawings. One fun exercise that I recently did for a video I was recording was to put together a little montage of my experience with the "redo loop" with my first "original" comic that I wrote in middle school. From ~10:12 to 11:40 plays a sequence where I show off like 10 versions of the same comic spanning from 2007 to 2017 xD
I only started doing primarily digital art in 2019 so much of my art history is physical and in those aforementioned drawers lol