Learning a language takes a lot of time. You can't learn everything inside a classroom so it is important to use your classroom time wisely. Practice at home and use the lesson time to ask your teacher about the things you find interesting and/or difficult. There are lots of things you can do at home to practice, here are a few suggestions.
Work through a grammar workbook, making sure to get a book with answers.
Listen to podcasts and watch TED Talks. Click here for some recommendations.
Find an English speaker to practice with.
Watch TV.
Listen to music and test yourself on the lyrics using websites such as lyricstraining.com .
Follow language learning sites on Facebook, Instagram and Twitter such as BBC Learning English, British Council and Kreis 6 English.
Try to practice a little and often. Use English whenever you get the chance to do so, and don't worry if you make mistakes. People will help you to get your message across. It might take longer to do something in English than in your first language but it's worth doing because it helps you to learn.
What activities and resources do you use at home? Why don't you try some new ones out? After all, the more you practice, the more you'll learn!