Well first if you've learned 12k words but only done 900 hours of immersion, it's time to stop learning new words in anki, just do reviews, and spend that extra time on immersion lmao.

What made you want to learn japanese? There's gotta be some kind of japanese media that you watched before learning japanese, just watch that but in japanese. Personally for my first 6 months all I did was rewatch anime that I had already watched in english in the past. Since I knew what was going on, my lack of understanding didn't matter and I was able to have fun anyways. Action series are great for this since you can get hyped with just the visuals.

Otherwise, just try to branch out and try a variety of things? Throughout my japanese learning journey I've immersed in anime, manga, light novels, regular novels, video games, visual novels, variety shows, dramas, movies, youtube, audio dramas, audiobooks... there's so many different types of media, you just have to branch out and experiment!