Two unrelated items:

I had very good results many years ago polishing the last steps of my French while in France. My tutor used very novel and interesting short articles, one example was a short article about shrimp found in a cave with no light. At the time this was a novel bit of information and quite interesting on its own. I think an effort to find novel and educational information to learn from is an effort well worth the time.

Please add Albanian. I should learn this language but I am not motivated enough. I would definitely give your tool a proper test run.