I was raised in Austria, and German was our home language. More than full immersion, it trained me to have an accent. That said, the best (not really fastest,

I was raised in Austria, and German was our home language. More than full immersion, it trained me to have an accent. That said, the best (not really fastest, persay) way to learn language is between the sheets. You learn SO much better when you're intimate and motivated. Which is how I learned French while living in Canada.