OP try to stop catastrophizing (I do this - so no judgement)
Just think: this is your house for now.
It doesn't have to be forever
The old area is still there.
Life turns and and unexpected things happen. You don't know where you will be in one, five or ten years - this is not permanent.
But right now, this is your home because it offers you and your family what you need.
You are sad because you have left somewhere that felt safe/familiar/warm, but you need time to create those feeling for your new home. It's like starting a new job - you know you've left the old job and taken a better one for the right reasons, but the day you leave your old job you have doubts because... you did love it. Then walking into an unfamiliar office with strange people who don't get your jokes and know how you like your tea is daunting. You can't imagine there is a potential friend among your new colleagues and all the processes are unfamiliar.
So you doubt your decision and wish you'd stayed put. Then six months later, when you've made friends, got involved in an interesting project and started to appreciate your payrise - your reasons for changing job become clear.
It will be like that with the house. You will make it a home. You will make friends. You will find favourite cafes and shops and parks. You will have friends round and slowly it will become your happy place.
But even if it doesn't ever feel as warm as your other house - that's ok. Because, it's just your home for now and it's the right home for right now.