Let me also give my opinion because I am also level 60 (reversed for styling purposes).
I think the goal of using WK is learning how to read Kanji, not necessarily memorize 100% all the Kanji. If you remember even 70% of all the Kanji I think it’s already pretty good, the rest might be burned through reading or maybe you will never have to use it. It’s easier to remember something you already used anyway.
There is also a duration problem. If you pick another language that has a similar writing system to English you can learn it in like 6 month if you really try your best. Whereas for Japanese, you spent more than year just for Kanji so you are craving for something different. I think I don’t have to tell you how hard the grammar is, so focusing on that will be good start.
Though I bet your grammar isn’t that bad at this point so just go all in on speaking. Just become fluent, do it!
Of course, at this stage of the game, you should go to what started everything. For example if you learned Japanese to read manga then go and do it, you deserve it!
So your situation is completely normal. I will try my best to reach lvl 60 (because I like everything related to levels) though I won’t necessarily focus on burning every single item (says the guy who didn’t burn anyone yet )
I wish you success in all future endeavors, you did well, now let your 後輩 do the rest!