A person is like a country.
The boundary gives it its name.
And to say “I have a body” is as if a country could speak in one voice and say “I have a landscape.”
Indeed it has rivers, hills, valleys, perhaps even snow tops. And this is much like our body has a circulatory, respiratory, integumentary and other systems.
Therefore asking “who am I?” is the wrong question and, instead, one must ask “what are all the things that I am?”
After all, one can never know a country unless one knows it in its entirety and you will never know yourself unless you accept fully everything that you are as part of who you are.