May I please take part in this super informative conversation and ask, if my ultimate goal is to master Japanese. In other words, watch anime without subtitles, read manga in Japanese and speak fluently, what would be your advice in this regard? What is the ideal approach to follow in your point of view? I'm looking forward to your answer.
Thank you in advance!
Best Regards!
Well, first of all you need to narrow down what your goal is as "master something" is very, very vague. Consider this if you could speak Japanese fluently tomorrow. What would you use it for what kind of shows would you watch? What kind of Manga would you read? What conversation would you like to have? What people would you engage with? Take a sheet of white paper or text editor for that matter and write down as much as you possibly can about that. This will from now on act as your gasoline, your drive as well as a guide. Whenever you feel down or unmotivated, you will look at this to get motivation or guidance.
Next, we need to make sure at which point you are in your journey at the moment. We need to know what you know to find out what you don't know. And there's a pretty straightforward method to find that out. First, pick any Japanese material that you would like to read, listen or watch. You then watch, listen or read that material and find out if you can actually do it. If you cannot do it, lower the difficulty. You will continue doing this until you find the exact level that you're at and comfortable with.
Let me explain why mastering is so hard by kind of copying something that I already have written on the forum:
Let me introduce the concept of "vocab spheres" - vocabulary that's covered through certain media. Take myself as an example: I used to love reading fantasy novels, so I became well-versed in terms related to magic, mana, dragons, and various military and imperial concepts. When I first started talking to natives about two years ago, I could tell them I was a level 10 fire mage, but I couldn't handle a basic day-to-day conversation. Did that mean my Japanese was bad? After all, I'd spent well over 500 hours learning it at that point. On the contrary, I was able to pick-up most fantasy novels and read them no problem. What I am saying is that you grow knowledge in the spheres you expose yourself to. While fantasy novels gave me specific technical vocabulary, slice-of-life stories overlap much more with conversational Japanese, making them more practical for everyday communication.
Research strongly suggests that reception is superior to production in many ways, which makes sense - after all, you can't produce what you don't have, just as you can't pour water from an empty bucket. Research also came to the conclusion that you typically need to see a word in context about ten times before your brain can accurately reproduce it. This varies depending on the word's learning burden (how easily you can link it to concepts in your native language for example). The challenge with Japanese is that most words have a relatively high learning burden to begin with - another factor that can lead to people quitting.
There are 2 main pillars, receptive and productive. And both these pillars branche out into 2 subtopics: Namely, reading and listening as well as speaking and writing.
Don't be scared. Japanese isn't necessarily hard to learn but oh man, it's a time sink. I would suggest you to reconsider reaching fluency or mastery (certainly not impossible but it would take way too long) and think about what the most important skill or pillar for you is. It's definitely possible to reach a level where you can do all of those things, you may miss more or less details here and there while immersing but thats something you need to expect.
I cannot write a guide for you as I don't know your situation well enough and it's a very personal thing in general. If you want you can add me on Discord and we can work out a general direction: RDE2111
P.s Japanese can be super enjoyable if you start appreciating the fact of not knowing something. As an analogy, think of it like finding gold in a mine. You found exactly what you were looking for, knowledge to acquire. This is not limited to Japanese but to learning in general. If you have a question you can find an answer. If you don't have a question there's no use looking.