When you manage to amaze natives with your vocabulary and pronunciation, that’s when you can call yourself a fluent speaker. Your friends are great support when you learn a foreign language together, but they cannot replace natives.

Some of the things you can do is travel or find a native in your area. You may consider taking a semester abroad in another country. Some countries, like Germany, offer wide range of programs through reputable language and culture institutes. If that doesn’t work, the Internet will come to the rescue.