This, in my opinion, is one of the most crucial things for ourselves to notice. If you like to learn at a slower pace, I recommend saving up for the Lifetime account (usually there’s a Lifetime discount in December or near Christmas). I believe that learning Japanese is more than just memorizing kanji; it also includes grammar, speaking, listening, writing (if you’re interested), and a deep dive into Japanese culture and intricate linguistic details.
10 years seems like a good length of time to take in a lot of those things and more. Unless you’re in a haste to study or work in Japan, consider using WaniKani as a supplement to whatever else you can find to help you learn Japanese. My current set speed is 1 level per month, which I think is good enough to keep me motivated as I progress.
Even though I’m in no rush, reading the post below made me understand how Wanikani’s SRS works better and how to be efficient. One of the best speedy helpers in the forums:
And of course it’s best to learn from others who have reached the top too. Speed varies.
Last but not least, the cheerleaders of the slower Durtle speed: