The concept of being who you are is interesting, it comes as it is, there is no false definition; you are who you are, without ever trying not to be, even without knowing who you are. It is quite different to know who you are, knowing yourself is about accepting yourself, to know who you are truly is about accepting yourself for who you are. You can change, you might not, you might want to change, but you might not. It’s simply because who you are, is who you are, whether you know it or not, doesn’t matter, others will see it, so either way it requires knowledge, and knowing is an integral part of acceptance.