Apprehensive...

I am going to Iran today. I am not sure if I should use the term "going back" to Iran. Don't know exactly which one is "back" and which place is "forward".

Which of them is my "home town" now?

All I know is, I have a ticket for 6:45 pm.
Hopefully the Internet is OK and I can post my pictures from there.
Stay tuned.
Jaleh