I did this the end of 7th grade.
not good.
I think adults should keep doodling.
doodling is fun as hell, whether in junior high or not…
Lo, extend, and create.
Comes first the common music.
Comes last the ultimate self-truths.
Thus I advice all artists to fully burn out and expend their creativity, until non is left, and truth-of-self will come soon after.