I agree with Zowee’s ideas as well. Also at the beginning and end of every day, try to write about the events in your day. This can help with understanding how to express yourself in the past, present, and future. All the best.

:) Practice, listen, write and speak. How can we speak English very well? Find something you love, find something you want to express in your native language, then try to express it in English. If you are confused about a grammar point, google '_____ esl' then read a short page. Get excited! Play games! You could try eslgamesplus - it's excellent. Good Luck! Teacher Zowee :)