How should you learn a language on your own?

You can get the basics by yourself, from online, books, apps, etc., but you don't really learn a language from a book. You have to talk to people who speak it, that's the only way it sticks.

There are international language exchange websites you can use, most of the people on those sites are up for Skype audio conversations and will exchange their language for English practice. It's a great way to make friends worldwide.

But the best way is to find a conversation group in your city. That way you can meet face-to-face with people and get some raw practice. Don't be afraid to make mistakes and guess work during conversation. They will happily correct you. :)

Are there restaurants in your city of the language you're learning? Marketplace? Do you listen to music in the language you're learning? All of these things can help.

Good luck.