Every year seems a little much? Maybe at young age, but 21/22/23 doesn't really make that much of a difference, or even 40/45
The advice should be written for the perspective of the reader not the writer:
"Hey 13 year old, don't stop learning how to play piano"
How would that help a 13 year old? Something like "Hey 13 year old, I stopped playing the piano at your age and now I'm regretting it very much. I often dream how well I could play if I didn't stop and I also could teach my kids"
Obviously you do not control the text. A short description with tips would maybe help.