Learning a different language is very difficult, and IMO, a certain personal sense of necessity is necessary. That necessity could be to be able to comunicate

Learning a different language is very difficult, and IMO, a certain personal sense of necessity is necessary. That necessity could be to be able to comunicate with others, living in a foreign land; or to be able to understand cultural products (like songs, books, movies, etc.), but I think if it's not present, or it's just a "I'd like/love to" level, is almost impossible to achieve a fluent level. Think of an English speaker that gets a lot of people just speaking to her in English, instead on their own different languages. It is too easy just to give up.