¿Quieres aprender español? ¡Muy bien! But what’s the best way to go about it?

¿Quieres aprender español? ¡Muy bien! But what’s the best way to go about it?
I’ll never forget the day my first-year university Spanish teacher informed me that I spoke Spanish with a French accent. She said it nonchalantly, a passing comment, a curiosity. For her, I suppose it was. For me, not so much.
You see, languages have always come quite naturally to me. And up until this point, I had felt extremely confident in class. I understood everything the teacher said. I found the expressions and grammar easy. I participated lots and helped my friends out too.