I have been quietly reading all of this and want to tell you again that I am very impressed by how objectively you are dealing with it, even though the topic is so distressing to you. Hats off to that, not everyone manages that.
Personally, I feel similar to you in some points, only it manifests differently in me. But after all the stress with building a house, moving, furnishing, etc., suddenly one lacks a goal, a task. You have really achieved everything you dreamed of in your life. You have been occupied with it for years. Almost too good to be true.
Here, many have probably felt similarly or have gone through this, and it has led me to excessive self-reflection. I doubt everything, and since a short hospital stay this year, I worry excessively, almost obsessively, that my happiness might come to an end, and I am way too hard on myself.
Not wanting to downplay your problem, of course, but I believe one tends to quickly fixate on the negative since not everything can be good. Objectively viewed, we are all living exactly what many couples and families wish for. Time and again, we get positive feedback from guests about how well off we are. And yet, I compulsively look for the flaw in the soup. I find it very difficult to simply settle, be grateful, and enjoy my life now. But I work on it daily to improve. I know all this intellectually, but emotionally I really struggle with it.
Maybe it’s similar for you.
I am sure that if you somehow manage to let go of the thought, it will no longer bother you in the long run. We have a railway track 500 meters away in a straight line and decided back then that it wouldn’t be that bad. After moving in, the shock was that it was indeed louder than expected; you can hear the heavy freight train despite closed windows. But fortunately, we calmed each other down a bit, and by now we don’t even hear the train anymore. Occasionally, guests mention hearing a train, and only then do I even notice that the railway exists at all. Nowadays, even sleeping with the window open is no longer a problem. This didn’t take us longer than 4-5 months.
At the end of the day, it is probably “just” a matter of mindset. But I also know how hard that can be. If everything else is fine, why make yourself crazy over it? In another house, something else will bother you. No house and no life in this world is perfect, one must not forget that, even if it sometimes looks like it from the outside.