I second everything that @Lewbie said (also thanks for linking my thread, maybe I can find some people that are interested in the read too😉)
I’ve been studying japanese from literally zero for three months now so my experience is so limited that I can’t give real advices but I’d still recommend that you always remember, native contents are the goal, and wanikani is a tool that you use to reach that goal, the most important thing you can do to learn japanese in my opinion is to start reading as soon as possible, not ‘if’ and not ‘but’, there’s not a minimum required level, just jump into the easiest book club you can find.
I suggest Takagi san book club, before the Attack on Titan manga I read it and am still currently reading it.
I asked so many grammar questions on it that literally every single speech bubble of the first two volumes of the manga are already covered.
You could literally just use that book club as the launch pad for more difficult stuff, starting from zero, because there’s a ridicule amount of grammar questions on every doubt that came in my mind while reading it, and when I started I spent 5 hours on a single page
So my suggestion is to start doing what really matters: reading, checking grammar points (Cure Dolly’s youtube videos are the Holy Bible of japanese for me and it’s impossible to describe how useful they were to me at the very beginning) and complementing all this with Wanikani.
Also every time you have doubts: just google “grammar point grammar” and always check everything on bunpro