L.B.
I have moved A LOT my entire life. Both before and after children. My suggestion to you, is to stay positive. Keep acting excited about moving and excited for her and all that the move will offer her. Don't stop once you get there. Acknowledge the downside when she brings it up, but keep it positive. Don't join in the pity party. Some days will be better than others (for both of you) but, she'll be fine. I promise.