Read English texts as often as you can.
This could be the news, short stories or novels, texts from your textbook or online. Choose an interesting text that is not too difficult for you (otherwise it wouldn't be fun).
Don't look up every word which is new to you - even without a dictionary you will understand a lot. Just concentrate on what you do understand and try to find out the rest by intelligent guessing. That works rather well, especially if you are interested in the topic. If you are a football fanatic for example, you probably won't have problems understanding an English text about football. On the other hand, someone who is better in English than you but not interested in football will have more problems understanding the same text.
Do also watch the news in your native language and try to find English news to some of the topics. Even if you don't understand every word in the English text, you will get the message as you already know what the text is about.