Hi dudes,
Rico wrote: in imaging all people except me being gone, I went through different scenarios as to how this would play out.
This is a very popular thought experiment! -see:
https://www.youtube.com/watch?v=6XDbcMND7fY
http://www.imdb.com/title/tt1173907/
https://www.youtube.com/watch?v=6XDbcMND7fY

[R]: My own idea was that I would have to go on a quest to my homeland, to go to my ancestors home.
We are standing on it, unless you believe that our ancestors were extraterrestrial. You are from earth. So is everyone else. We have to live with that one  :  )  This is our homeworld. Artificially dividing up that homeworld into 'countries' is a fiction. Your ancestors are my ancestors; are everybody's ancestors. We are all one beam of life.

[R]: would the highways not be chock full of cars motionless for thousands of kilometers?
You never gone offroad?  LOL  :  )

[R]: I know that being aware of anxiety is the most basic basic thing to remember now. I forget over and over.
We all do. Over time, we just remember quicker, is all.

[R]: I feel I confront this other figure, this transparent constellation kind of connected by the dots human figure that used to embody me, but now I can take a step back and see Anxiety face to face, and it isnt me.

Sounds like you've initiated a brain growth spurt and dropped the artificial avatar  :  )  Enjoy! It's great being free to be our real selves.
Btw I love 'the mammals'  :  )  As a kid I used to wonder if animals in zoos saw US as 'behind the bars'; from their pov...
Best,
AR