I don’t feel like I’m progressing anymore

Japanese would be my fourth language (and hopefully the last), learning languages been always my hobby and I'm familiar with all stages of this long journey.

For some reason, I feel stuck!
I'm a serious learner. I study everyday for one hour at least and I'm a big fan of comprehensible input since it worked with both English and Spanish.
I've been studying for a year and half now and I tried immersing for two months. I have more than 1k hours and I studied 400 kanji till now (kinda lazy when it comes to kanji and reading but I'm not in a rush when it comes to reading). So in conclusion I think I'm at an N4 level.

I focus on improving my listening skills and learn as many words as I can and of course they all in sentences. I use Anki for that.
I'm learning it because I wanna watch anime and Japanese youtubers without subtitles. I also wanna travel to Japan in the future, I'm in love with the Japanese culture too.

I just don't know if I'm rushing things or if I'm actually stuck?
I don't confuse myself with many sources btw. But idk what's wrong?
Any tips?
And for those who'll ask me to learn grammar I already tried that too, I started learning this language with textbooks and some YouTube channels then I switched to CI.

Now I won't give up of course but I wanna know if there's something I can do to make me feel that I progressed at least.

by ELoueVR