The amount of languages learning
How do some of you learn 10 languages or more at the same time and I'm finding hard not to get mixed up with only two! I want to learn more but I'm afraid that I might gonna forget which language is which when I'm talking it - I've done it already..... completely mixing up the contexts and stuff.... :( Help?
Just do what allows you to learn best! Don't mind the others. Some have been using DL for years, some are maybe mostly interested in finding out how different languages work and not in becoming fluent, some maybe are simply geniuses - who knows! You need to figure out what you want to achieve with DL and what works best for you to reach this goal.
If you are mixing up your languages, it's best to put one of them on hold for the time being. It's particularly difficult when you start out with two language at the same time. It's best to bring one language up to a higher level so that you have internalized the basic grammar, spelling and vocabulary. And then start your second language. This way, you will be much better prepared to keep them separate.
I'm not sure about people who learn 10+ languages. In my case I've completed 4 trees (Esperanto, Japanese, Russian, Spanish) and am hoping to finish at least 1 more (German), hopefully 2 (Indonesian) by the end of the year. I don't usually experience significant cross-language interference, but I usually only study one language at a time, and most of my languages aren't too closely related.
When you're in the early stages of learning a new language, I think it's very common and basically expected for your brain to provide words from another foreign language instead of the language you're trying to speak. The chances of that happening decrease the more you get acquainted with the new language.
Some people learned languages before they ever began using Duolingo and do the Duo trees for those languages only as a refresher or because they are curious about the content of the tree/want to provide feedback to help improve the tree. For instance, I have a lot of languages on my profile, but I was already fairly proficient in French (I took 4 years of French in high school), so I have only done the course as a means to review and try to see how much I still remember. I was able to test out of most of the tree (except for some of the more complicated grammatical tenses, which I didn't remember all that well). I did the Japanese tree as well, but I lived in Japan for many years and already speak Japanese, so I was able to test out of every skill all the way up to level 5.
My general point is that not everybody is actively learning every language that is on their profile at the current time. I also have a difficult time switching between multiple spoken languages without getting them confused (I have an easier time with listening/reading, though!).
I started a little over a month ago and have started a lot of languages here. I have always tried to pick up bits and pieces of other languages but before I found Duolingo I never really had the opportunity to seriously learn them because the time and/or money investment was an issue, and the teaching methods didn't really work for me. But, the way Duolingo teaches makes it easy for me to juggle multiple languages.
On any given day I just learn whatever language I feel like at the moment, I don't have any structure to it or anything. I started out with Mandarin Chinese, then moved to Spanish, now I'm on Esperanto, with smatterings of Japanese, german, french, etc.
I just find languages really, really interesting and it's fun to see how many words are similar across different languages. Sometimes my knowledge of one language will help me learn words from another - for example today in Esperanto my lessons covered the word for "drink" and I recognized it from the German word for drink. There are a lot of words that have the same root, and if you know the root words it's easier to apply them to other languages :)
I learn some for fun, kind of like a brain teaser. Some I already knew a little bit and some I knew a lot of. Duolingo makes it easy to "play" with various languages. I'm not that accomplished but have only been here 3 months. Early on, I liked studying different languages at the same time but now I have put several on hold while I refine my skills in others and get them firmly in mind. I find they come back quickly once I start them again, but have also been frustrated when I could only think of words from the wrong language! I do better if I don't take it too seriously...except for the 2 languages I AM trying to learn seriously...lol. I love languages and can learn them fairly easily so it's a nice pastime to play with some of newer ones here. I totally agree with others who say it is best to study languages that are very different, though, or at least one that you have a lot of skill in and one that is newer. Good luck. Just because people have many different languages that they are working on doesn't mean they are exposed to them every day or even every week or month in some cases.