I'm taking the mostly immersion approach to language learning. I just watch hours of Japanese gaming youtubers and whenever a word starts to stand out, I look it up if it wasn't obvious from the context. I estimate that I learn a new word every 2 hours of content

I looked into traditional methods, I also know about Antimoon, AJATT, MIA, RTK, WaniKani, Anki/SRS, etc. But I'm too low in conscientiousness to stick to a plan, and I burn out on SRS and mnemonics after about 500 cards, even with reasonably low card rates. The mnemonics become a frustrating scramble of meaning in my head.

Just last night I learned the words for mirror and crime with almost no effort and I still remember them today. That's two words learned, both only encountered once, in context. I even have the image in my head of one of the in game mirrors. That kind of "fast mapping" just doesn't occur any other way (that I can find). I've also picked up plenty of written Japanese, including kanji, from menu screens, subtitles, etc.