Masochism--it does sound a little like that :)) Also very impressive, especially the graphs.

I love languages, but I wouldn't torture myself with such discipline :) For me it was always enough to be able to communicate. It didn't matter to me if I did that badly. I spent years studying German and Spanish--without attaining true fluency. I took a Berlitz course (10 lessons) in French and at the end could actually understand a bit of the language. Same with Italian...although I never studied it, my mother used to talk with my relatives in Sicilian (which is a language distinct from, and older than, Italian). After your last blog I started with DuoLingo in German, to improve. After a few lessons, I stopped. It wasn't fun. I'd rather listen to movies or TV shows in German and pick it up that way. I think I'll have to find a subscription to media beamed from foreign countries. That I think would be great fun and a more natural way to learn--other languages also. Did you ever try that with Japanese? With English captions? Probably too casual and slow for you.

Certainly wouldn't be able to graph that progress :)

Good luck!!! And, remember to have fun.