Note: sorry, my english is not my native language

My only advice(s) as someone in mid '40s are: 1. Don't jump to such a sudden and radical change, many-many things in US are vastly different that what are you accustom (strong point since you're from Germany) 2. Give it a try since you're mostly working as freelancer, spend 1-2mo (tourist visa) so you will not break up from your wife 3. See how's living there, if you can accommodate 4. Let us know (start ablog) :)