If you have already studied a foreign language, then you already know that you can read and understand grammar as much as you like, this will not necessarily improve your ability to communicate.
So, what can you do?
This could be a desire to travel, work abroad, communicate with native speakers, or simply love the language and culture of the country where it is used, go to university, and study in Europe, the USA, or another country.
Overcoming the language barrier requires patience, diligence and constant practice. By following these tips, you can make learning a foreign language more effective and achieve success in it.