How to learn two languages at once
I have just recently spent the last year abroad in Norway and have become fairly fluent in Norwegian. However, I love french and wish to become fluent in it and I have been studying it for the last three years. But, while I was in Norway my Norwegian became stronger than my French and replaced it as my second language. Now, in hope to stay proficient in Norwegian I practice it on duolingo while taking french in school, however doing this I feel that I am not growing in either languages and that neither improve since I might be switching to much or something. But, if anyone has any suggesting about how I can learn both at the same time and grow in both languages I would be forever grateful.
Thank you, tusen takk!, et merci beaucoup!
Since you've spent a whole year in Norway I assume you're Norwegian is pretty good at the moment. So Duolingo may not be the right resource for you to keep practicing your Norwegian, as it is simply a beginners' course (albeit a good one).
It might be easier for you to keep the languages apart if you use Duolingo for French and get your Norwegian practice from other sources such as listening to the radio, reading news online, books, etc.
For what it's worth, I find that studying several languages at the same time, and even using the same resources, gets easier with time. But I really think you might be past Duolingo's level in Norwegian already.
It just takes time. They both need some of your time if you want to keep learning them or at least maintaining what you already know. For Norwegian, I am sure you are too advanced for Duolingo at this point after spending a whole year there, so I would consume media (Youtube, books, newspapers, etc) in Norwegian, while doing French lessons here on Duolingo.
Basically, learning two languages at the same time doesn't have to be different than studying both chemistry and biology at the same time. It's all down to how much time you have to put into the language. If you have time to study two regularly, you will continue to get stronger in both of them. If you don't, you won't.
My advice (but, of course, everyone's different) - which do you want to really have down pat first? French or Norwegian? Let's say, randomly, French, as an example. Dedicate three or so days in a row to learning French, strengthening French, and so on, then spend a day strengthening Norwegian. Or, if you want to have Norwegian done first, do it the other way around.
You could try studying French using a Norwegian textbook or Norwegian using a French textbook. Best is to have a book w/ a key. Here are some books listed on amazon.fr--I have no idea if they are any good. From your visit in Norway, perhaps you know of a bookstore to order something in Norwegian that teaches French, or one of your Norwegian acquaintances may have a suggestion.
This may be quite difficult or it may not be too bad. It depends how adept you are at the language you are using as a base. IMHO, the way to look at it is this: if the book you choose proves to be too difficult at first, do not worry. Just save the book for some later time, when you will probably be delighted by how much easier it will be.
Use the Norwegian forum to ask questions about scentence structure, how to use prepositions (takes a lot of time to master) and so on. Perhaps you would find it fun to read one of the Norwegian classics both in French and Norwegian? If you spent a year in Norway someone you know could help you get hold of used books, I guess.
I think you have the ideal skill "gradient" to work on both. Your Norwegian is advanced enough that you can largely use it for more "everyday" things: listening to / reading news, entertainment, podcasts. French you're more in standard Duolingo learner phase, so you dedicate the time to that that you can / you need.