This article has great advice! Study while you are at school! Practice while you are on vacation! Spend your school holidays with Language on Vacation and practice speaking English while you see the famous sites of America!
Check out this article: http://www.esl.com/get-smart/5-habits-every-english-language-learner-should-form-this-school-year#.V-CTWt71RTQ.facebook
Then check out our vacation choices: https://languageonvacation.com/tours/so-many-tours-to-choose-from/