Learning and acquisition are two different things.
You don't learn language, you acquire it through massive amounts of INTERESTING Comprehensible Input.
Read:
http://www.sdkrashen.com/content/articles/2014_lao_and_krashen._language_acquisition_without_speaking_and_study.pdf
http://www.sdkrashen.com/
Watch:
https://www.youtube.com/watch?v=fnUc_W3xE1w
https://www.youtube.com/watch?v=_FRKBxLvKmw
https://youtu.be/DSW7gmvDLag