How many people have completed the Norwegian tree so far?
I have no idea actually, I haven't taken any standard test yet... I'd say I can understand written Norwegian fairly well, but spoken language is still very hard for me. I've recently started watching movies and listening to the radio in Norwegian, so hopefully that'll help with listening comprehension, and I brought back a couple books from my short trip to Norway this summer, so that should help with my vocabulary.
That said, I learned a little from a book and the Pimsleur course before the duolingo course came out, and I practice vocabulary alongside duolingo, so if you're just using duolingo you may get quite different results.
As for speaking... that's another story :)
Mostly animated / kids' movies, since they're dubbed (easy to find on Netflix if you use a VPN to get the Norwegian version, or on torrent sites by searching for "norsk tale"). The annoying thing with those is that the subtitles are usually not transcriptions of what's actually said in Norwegian (I guess they're translations of the English dialogue), so I have trouble following what's being said... but maybe with more time -- and more vocabulary -- it will get easier..
Actually I find it's pretty hard to find movies or other audio/video that's easy enough to understand, since there's a very big gap between the simple sentences on duolingo and actual, normal-speed dialogue.. so I'm open to suggestions if you have any idea where to look for more resources :)
Jeg tror at norsk er ganske vanskelig.
Jeg har gjort omtrent halvparten.
Jeg gjentar [[redo ??]] leksjoner mye.
"til" versus "for" er vanskelig. Og "på" popping up overalt, to make idiomatic expressions is challenging.
Jeg har stått på å lære !!!
[[expression = I've been putting in effort (or trying hard) to learn ?? Something like that.]]
Your last expression would be: "Jeg har stått på for å lære!!!" ( "å stå på" means you must have put in an extra effort, and can also be used when you want to motivate someone to keep up his/her hard work: "Stå på!"). Det ser ikke ut til at norsk er spesielt vanskelig for deg, du skriver godt allerede.