Read a boring textbook. Almost all English teachers use textbooks. Because it makes their work easier. They don't have to prepare something interesting for every class. They just do the next unit in the book.
Textbooks make teaching easy.
And they make learning boring and ineffective . You have to read all these stupid stories about Michael Jackson or a woman who lived in African jungle for two years. Then you have to answer questions about them. All this nonsense that you don't care about. It makes you think that learning English is boring.