I would offer this piece by Tony Parsons to explain the current difference between Neo-Advaita & Classical Advaita.
https://www.theopensecret.com/traditionalnottwo.html
My take on it is that I already am
That but I was programmed, by other programmed folks, to believe that I am a limited, separate person in a world of other separate, limited persons/objects and so I LOST my original sense of Oneness or Unity (not-two) at a very early age. I've been "seeking" for a long time and now, thanks to the new teachers like Tony, I can see that I never lost anything and always was and always will be
That or whatever it's called. This is it!