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Korean and Japanese are very similar phonetically.
But they took two very different directions in alphabet.

I hear that one way to learn a language is watch shows in that language.
(no subtitles)
And your brains starts putting together phrases.

I have noticed i start understanding, or remembering what a phrase means, when i hear it, and not looking at the TV.

Wow!! That's a great tip and really confirms my observation too. I do watch Korean Soccer and since they repeat words in cheers and short instructions, it retains. Amazing.🌟