Quick update at 650h on my overall level of Japanese!!
Background: Serbian native speaker, but I’ve acquired both English and Spanish along the years just by consuming a bunch of fun content!!
I don’t use Anki (although I will use it to learn Kanji in the future), and I have done a few weeks of HVPT on kotsu, but I’ve reached a consistent 100% (on a minimum of 100 examples) on there within the first month of learning Japanese so I’ve stopped since then.
(sorry for any typos or weird formatting, not really used to writing long posts in English)
My routine:
Currently I’m doing 7.2h of active input per day (I know very specific), I’m literally treating this like a full time job and the progress has been amazing. I currently do 1h of CI, 2h of Slice of Life animes (currently watching Non Non Biyori and Flying Witch) and then the rest of the time is filled up with whatever I find fun in Japanese (currently that’s Yu-Gi-Oh GX).
From about 350h until literally 2 days ago, I watched 0 CI videos, all of my input came purely from anime. I started off with Pokemon and watched that for about 500 episodes, then I switched over to Yu-Gi-Oh Dual Monsters, and I had a bunch of random animes in between like Digimon, Pokemon Horizons, and like 126 episodes of Yu-Gi-Oh GX .
Why I added some CI back into my routine:
While I found that my overall level of Japanese progressed really quickly during this period (the combination of really fun and mostly comprehensible content with huge amounts of daily volume really does work well), I found myself missing some of the more basic words. While I’ve acquired words like “alchemy” “sacrifice” “special ability” and “ritual”, I came to the realization that I don’t know the word for “chair” yet (surprise surprise, shonen characters don’t really sit around a lot)… I really find myself drifting off while watching CI, but treating it as my mandatory vegetables for 1h per day is actually working out quite well. I don’t plan to watch any CI past 1000h, but for the next 40 something days I’ll be adding it back in, just to fill out some of those anime sized holes that I currently have.
What can I understand:
Pokemon - pretty easy, I can watch most episodes comfortably, but I still find the odd Team Magma and Aqua plot difficult, and old people speaking still requires me to lock in 150% just to understand anything. Overall, 80%+ of the episodes are 80%+ comprehensible.
Non Non Biyori and Flying Witch - Really easy and fun, the dialogue is really comprehensible, and it’s fun to watch something in Japanese, made for native speakers, where you feel like you understand everything word for word (I don’t understand these word for word, but I understand the majority so it feels like I’m not missing much). The only gripe I have with these is that they are short, NNB is 12h worth of content, and Flying Witch is 4h only, at my current pace I would blast through these in 3 days, so I can’t make them the only thing I watch.
Yu-Gi-Oh (DM and GX) - these are perfect, difficult enough to push my upper limit, but understandable enough that I forget time is a thing. 4h of this feels like I’m just enjoying my favorite show in English. Don’t get me wrong, on a word per word level, I understand Yu-Gi-Oh way less than the Slice of Life animes or Pokemon, but I never find myself lost on what’s going on, and considering how repetitive the battle vocab and the shadow realm talks are, by now I’ve acquired most of the words that would make a show like Yu-Gi-Oh difficult to watch. During the original, the Egyptian lore parts were a hard drop in comprehension, but most of the show was pretty enjoyable, I can’t wait to re-watch this one at 1500h in about 4 months to use it as a measuring stick of my progress.
Naruto - tried it for 30 ish episodes, and while there are parts that are comfortable, there are also multiple sections where it feels like I legit don’t understand a single word (the Chunin Written Exam for example), I’ll leave this one alone till 1500h 
Plans going forward: I don’t plan to read until I have at least 50h of speaking with natives under my belt, and I really don’t plan to start speaking until at least 2000h of input, if not a bit more. For now, I’m just really happy that I can watch some fun content in Japanese and actually enjoy it for the story and the characters.
While my selection is really limited right now, this was still unimaginable 4 months ago when I started out learning Japanese. I can’t wait to look back on this update in 4 months from now when I’m sitting at 1500h. It’s hard to imagine how much better and more fun the input will be with close to 900 hours of input more, but I guess I’ll see when I get there!!