[MMM]

Indeed, as those who have self-studied for many years, and do not feel they have any proficiancy, this poll may not fit. I was thinking about people that have gone through formal study. Of course, Nyorin is a unique case...likely the only one here who has fluency with no formal study (besides a native speaker).

To be frank, I have never met anyone who self-studied outside of Japan and reached any real level of proficiency. I would loved to be proven wrong, but I know I wouldn't have been able to do it outside of a formal class environiment.