You
Maybe you have wondered about some of these and other similar questions. It is interesting to wonder, if I were a really good football player would I have really clever feet. Maybe very many years ago, people might have thought this but now science has provided better answers to such questions.
Wanting to know about how you are you is really understandable. How different are you and how much like everyone else are you?
How does my brain work?
How does learning happen?
Why is learning sometimes hard?
Where is knowledge stored?

Where are you? If you are unlucky enough to lose part of an arm or leg or something, this will clearly affect you but you will still be you.
We now understand that who we are is represented in our brain and it might just be interesting for you to find out something about your brain and how it works.