There’s a Chinese proverb that goes:
學到老 活到老 還有三分學不到
It says, “Learn till old, live till old, and there is still one-third not learned.”
It means that no matter how old you are, there is still more learning or studying left to do.
That sounds harsh! But does it have to be?
No, rather, we can think of it more positively. There will always be stuff that we can study. Conversely, plenty that we can’t study either.
Instead, we should enjoy the journey. Understand there’s “1/3” not learned, and just enjoy learning what you want to learn.
Only in that way will we truly succeed, especially when it comes to languages.