I understand that "chez" usually means at the home of or the place of, but does it ever mean "self"?

eg. "Si tu pouvais changer une chose chez toi (sans obligatoirement être ton physique) ce serait quoi ?"

Does this mean "If you could change a thing at home (without necessarily being your appearance) what would it be?" or can it also mean "If you could change a thing about yourself (without necessarily being your appearance) what would it be?" (the second example makes more sense to me as a question).