I believe that identity is wholly a social and natural construct. It is a function of ego. There is no true self-identity. To understand your identity, you have to remove every aspect of society and nature. You are constantly pushed and pulled by what or who is around you. Are you by friends? You identify by how your friends expect you to act. Are you at work? You identify by how your coworkers, boss, or customers expect you to act. When you are alone, you identify by the things you surround yourself with, be it video games, books, or your sour dough starter. Even in nature we let our ego be adjusted by the trees, a river, clouds, or sunshine.
Put yourself into a sensory deprivation tank for a few days and you'll start to get a clear view of your real self, which is conveniently about the time it drives you insane.