Only if those tasks burn you out. If you want to learn a language, music, drawing, etc., then spending a few hours on them each morning before work oughtn't wear you out. That is, you're doing them because you enjoy them. If they become tedious, they're not work, you likely don't have a deadline, you change up that routine. Drop the music for a bit if you find yourself too frustrated by some piece or element of playing the instrument, but you still have that time, so fill it with leisure reading of a novel for a few weeks, return to the music refreshed.