Polyglot “Polyglot Friend” Friend

Hello! Zdravo! Halo! Dóbry den! Bonjour! Merhaba! There is so many ways you can communicate with other people and I think it is definitely possible for people to learn other people's languages! English is my mother toung and I grew up around the Croatian language! Anyways please give me support and correct me if I'm wrong and help me learn your native language!