I totally agree. Unless you are prepared to understand your mistakes and correct them, no amount of lip flapping with native speakers will get you anywhere. There are thousands of Chinese in Australia whose English sucks! You are much better off listening to recorded language and just copying it! That is how I ended up speaking a second language fluently.

The only way to learn English properly is to live in an English-speaking country. But, second best, you can talk to English-speaking natives using the internet.

Naturally just chatting won't improve your skills. However, if you are in contact with them, it is a good reason to study more and more. It works as a motor which moves you to study the language, searching for new subjects about that and practicing not only in the chat, but also in other media contents, books etc. So we can say it indirectly helps you. Many people don't study as they should because they don't have a good reason for that.

how do you learn english?