But everyone has this sense of "me".
I would go so far as to say that it it will always be there for everyone, regardless of what they do or don't do, or how "enlightened" they are.
They can spend talk indefinitely about how there is no "I" or "me", but at the end of the day, this sense of "I" will always remain. It will remain even for someone who has dedicated their life to dispelling the illusion of it.
Memory is not what is experiencing experience.
And even if you lost all your past memories, you would still have the sense of "I".
...you just wouldn't have a story or a history to go with it.