Help. Hello, I learn almost alone English Portuguese and Russian .. can you give me some tips to learn faster???

Hey ! How are you ? / Oi ! como vai você? / Ciao, come stai ?

Hello ! Holà ! Bonjour ! Oi !

What are the expressions known in your country?

Hello everybody ! I'd like to improve my English or Russian or Portuguese could someone help me? I am French, if you need I am here