Sometimes, just immersing oneself in what’s really intriguing can be the answer.
Chef Kwon Sung Jun, a.k.a. Napoli Matfia from the Culinary Class Wars improved his English dramatically while watching Gordon Ramsay’s YouTube videos. With a strong desire to learn cooking techniques, he watched those videos over and over again even though there were no subtitles available back then, and one day he could just understand most of them.
It might have been more difficult if he had been watching those videos only to improve his English. Sometimes, just immersing oneself in what’s really intriguing can be the answer.