Germany has little to no money for game dev education. "Professors" here are far from AAA quality experts in other countries. It's all about autos here.
it means you need the inhouse experience and education, the references and acceptations needed to obtain the H1b visa. you need 10 years of cumulated education and inhouse work experience in the field you are applying for (education counts double, since you come from supinfocom, you already have 8 years with only your…
I agree that doing stuff on your own is a good first step. I'd recommend focusing more on good art education than specifically game-oriented education. Become a good artist, then make sure you can apply your art skills to game art production. Don't miss out on things like good solid drawing and design courses.