You intend to already be playing on the national team by the time you move to Germany at 18. On top of that you want to represent the US internationally while still playing in Germany. At least that's what I've gathered from what you've posted.
I don't know if you have rich parents or what, but this is already more expensive than the majority of people can ever afford, and is extremely luck based even if you train extremely hard with the best coaches for 40h/wk like the asians are training. There's probably a hundred million players out there who are better than you and the gap widens every day compared to the people who will become professionals in the future.
To accomplish one or the other is an immense thing already and will take everything you and everyone who supports you has, I don't know where you intend to find the surplus for the other.
I'm not saying to not do it, because you're young and you've improved pretty well, so I think you have a knack for it and should make an attempt, but I've been trying to emphasize that you need to have some serious talks with coaches and your parents in regards to what is actually possible for you and your finances, then find the highest chance avenue (probably still single digit %) and hammer that one. Last I checked you made a thread last year and nothing has changed at all, and probably nothing will change in the future either, you just want people to give you answers and placate your dreams.