Where can I apply the German language?
I don't see a trip to Germany in my future. Any German markets around Chicago or something?
Look for a restaurant that has German food and toss some of that fancy language around an see if they reply. It would be a good exercise on your newly learned skills.
If you are good at German language why don't you use it to make a good carrier. You can work as a freelancer or as a translator if you are good at this language. Just think over it, its a good option to use German.