I'm going to Nepal this summer. But unfortunately there is no Nepali course on DuoLingo. A friend told me to learn Hindi instead since it appears to be close to Nepali. Anyone some advice? Hindi is also a challenge :o
I think Memrise has a couple of user-created Nepali courses where you can pick up some basic words and phrases.
As for learning Hindi instead, keep in mind that the two languages are very closely related but still not mutually intelligible (think Spanish and Italian). That said, learning Hindi may also be advantageous because both Nepali and Hindi share the same script and in many regions of Nepal, you would encounter a lot of people who can also understand Hindi.