Summer can be the perfect occasion to improve your English! You have more free time and you can use some of it to practise and improve your English.
"During this summer I'd like to improve my English, but I can't travel abroad, so I'll do it some other way. For example, I'm going to read articles and posts online and to watch videos in English. I'd also like to read books in English. I've never done it but I want to try. " (Jaco)