Oh dear... that all sounds really bad, I am very sorry for you that you are feeling so bad after the purchase. I don’t think much more needs to be said about the rational arguments why this purchase is actually a very good idea; since we are building in Munich, the Stuttgart prices really don’t bother us much in comparison and are quite manageable with your very good family income as well. I would definitely recommend that you contact your family doctor or even better, a counseling center for psychological distress, because your anxiety is currently completely paralyzing you and no longer matches the objective situation. During Corona, many of us reached our absolute limits and it is always better to seek help in extreme emotional situations if you feel like you don’t know what to do anymore. You describe your emotional state with words that set off alarm bells for me; there is a lot of pressure, fear, loss, and performance compulsion to read, even though there could and should be a lot of anticipation, positive excitement, harmonious family life, and joy about a possibly second child. If everything should actually be fine, but it is not, I think in this case it is really worth looking behind the facade; the house will only be the trigger for why you feel so bad now, but it could resurface before the next big life decision if much more important questions scare you but are suppressed and not looked at: Do I feel comfortable at work? Am I coping well with the demands placed on me as an employee and father? Why do I put so much pressure on myself, who do I have to prove what to? Is my marriage and family life nice and stable or is there a construction site here? From my own experience I know how difficult and sometimes painful it is to deal with such questions, but also how good it can feel when you find answers to the actual questions; then usually the other problems for which you actually sought help also dissolve. What generally helps me in life was the realization that unfortunately we have nothing under control but that most things are also just a snapshot and you can always change your life, that applies to divorces, house sales, job changes, and friendships. Imagine the absolute worst case, what could happen to you? Construction stress, a tense relationship, and a sale of the house, which in your situation would probably go through without loss or even with profit. Or is it more the fear of maybe not meeting your own and others’ expectations and therefore preferring to play it safe by staying in the no longer suitable apartment? Consider the question of why it would be so bad if you were to “fail” with this house, I believe and wish for you that then you will feel better and will find a solution for this answer together with your family.