There are posts about people going slow too. I see them, maybe not as often as the go fast, but they’re there.
Here are two level 60 posts from people going slower with WK (that were easy to find due to title in @jprspereira’s compilation of got to 60 posts):
And these threads were just a couple I knew how to easily find. Just searching for posts might find you a lot more.
Also, I’m a case. I started about 1,5 years ago, and I’m 25 (almost 26).
If you are feeling burnout, my two top tips would be:
- Slow down
- Do fun things with Japanese, but not in study mode (so watch some anime if you like it and turn on subtitles in a language you understand, read easy-for-you manga/books, etc.)
Some combination of those two usually works for me. So slow down usually means no (or very few) lessons but usually all reviews (unless there are a lot). But sometimes it is enough to dig into the things I am learning Japanese for (which for me is reading manga and books, so I read manga and books that I can easily digest at with my current ability). Sometimes I need both, sometimes I need one or the other. And it is also okay to take a break for a couple of weeks.