I don’t lack ideas. What I do lack is knowledge. I’d like to know just how long it takes, using my method, to get a language up to speed.
More specifically, how long does it take to get a language with a more-or-less English alphabet up to the point where it is ‘self-sustaining’ the way that Dutch and German are, and Japanese is on the point of being?
Let me get back to Spanish (I’ll ignore French for the moment). What if I concentrate on it for a month?—the original idea was to spend a month on each language.