>tried Duolingo with some basic level for cca 6 months in past year
To be honest with you, I think you spent too much time on Duolingo. It's definitely not a suitable tool for learning new things after the first 8-12 weeks (assuming you put in around 30-60 minutes a day).
To be fair, though, in that short initial period you can pretty easily learn close to 1000 common words, as well as basic sentence structure in your target langauge.
This is immensely useful if you want to start communicating with others online or reading texts in your target language; you're looking up the few words you don't know rather than staring at a wall of gibberish.
To be honest with you, I think you spent too much time on Duolingo. It's definitely not a suitable tool for learning new things after the first 8-12 weeks (assuming you put in around 30-60 minutes a day).
To be fair, though, in that short initial period you can pretty easily learn close to 1000 common words, as well as basic sentence structure in your target langauge.
This is immensely useful if you want to start communicating with others online or reading texts in your target language; you're looking up the few words you don't know rather than staring at a wall of gibberish.