German is more familiar now since I live part of the year in Rome and part in the German part of Switzerland. But it's not difficult to sing in German; it's difficult to feel in German. This takes time. It's a culture.
Managing is like holding a dove in your hand. Squeeze too hard and you kill it, not hard enough and it flies away.
Learn to... be what you are, and learn to resign with a good grace all that you are not.