I don't think you'd be human if you didn't have doubts at some point. We worry if we're making the right decision for our children - we worry about just
HOW LONG it's gonna take to sort out the stupid Visa situation, we worry about what we'd do if it all went wrong (although we've decided Canada or Oz but definitely not back here

).
However, I was just looking at pics of my lovely US home & the area & then I've looked at my London garden & home & there's
NO comparison!
I think Madwife once said on a thread a long time ago that we have to be more than a little stubborn to go through this process & I think she's right! stubborn people, by their nature, put their doubts aside in the end.