We both really miss our old house even though it was super impractical with a baby. We rented a tiny Victorian terrace with crazy steep stairs and just a gravel courtyard garden. BUT we had the best neighbours with a lovely community. Everyone was friendly and it had a great children's centre where I went 3 times a week to free soft play.
We've finally bought a house on the other city of the city in a much more affluent estate that is 20 years old. It's beautiful with much more room but we're both finding faults in silly things and miss our old house. We both genuinely feel very down. Our son is going to be one this month and it's lovely seeing him have the space to crawl around the living room etc.
YABU - enjoy the new house!
YANBU- you can mourn your old life!