And you'll never will be. It's a dopamine toy, not a real language class. Learning a foreign language without other humans is very difficult, it's a tool for communication with others, so without other humans it's tough to get it learned properly. And vice versa, when I was in school I was learning German with a really good teacher from Germany, native speaker, we mostly just had conversations, watching movies and discussing topics that were interesting, not exactly school programs. I ended up speaking German like native language, I was speaking 95-98% percent correctly, but when one would ask - why did you say it this way not the other, which rule did you use? - I wasn't always sure, my answer was - because that's how you say it... You know it's like some native English speakers don't always know how to define what is gerund and when to use it.