I took this idea from my PhD supervisor and found it to be incredibly useful.
Before writing down a long form doc, make a quick mondmap answering the following:
1. What are the three core ideas you’re writing about?
2. What are the three main criticisms / counter arguments against your ideas?
3. How do you plan to respond to the criticisms?
Depending on the subject matter and length of the doc, you may need more or less than three. But see if you can get this mind map written first. Then, see if you’re convinced the ideas are worthy of writing. Only then write the long form.
If you have healthy kids, they become mostly independent at age 4-5. You may want to consider a 5 year plan in Germany, or even a 3 year plan, and then reassess. It doesn’t have to be a one way door.
You’ll have plenty of time to accumulate wealth beyond the next 5 years. And you’ll still accumulate some even in Germany.