Language exposure

What you need to learn a language is exposure to the language. You need to hear words and phrases over and over again. If you do not hear these words over and over again. How can your brain ever form the right connections? Think about a brain cell, it must make countless complex connections just not to the auditory centers of your brain to speech centers and to areas that deal with abstract concepts like grammar, comprehension etc.  There is no way your brain will magically grow and form instantaneous physical connections to a dozen parts of your brain just by hear a word once. The myth that people pick up languages is just that. A myth. If you want to learn a language you need constant exposure to it so you brain has time to grow these connections and in the right way. Thinking has a physical basis. Your brain needs time to adjust to all the variations of usage. This takes time.  Learning a language is an art not a science. So everyway to learn a language is a good way. Use your imagination.