Hi Faten, welcome to the forum :hi:
You can use these suggestions:
1. Get one of those books which has a tape, and as you read listen to it. This improves your listening and speaking,because you hear the correct pronunciations.
2. To improve your intonation, try to sound angrier, happier, or more frightened.
3. Listen to people speaking in English and without pausing the tape or the movie say it immediately after them and try to sound just like them. If you're using a movie, look at their faces and lips and try to talk like them.
4. Choose a line that you like from a movie or song, memorize it and say it with yourself just like the actor or the singer.
5. Speak on the phone in English.
6. Read a lot. Read for fun, not because it's homework or a test, just because you like it.
7. Paraphrase; say what you read in your own word, but don't change the meaning.
8. Watch the film and enjoy, then focus on the language. Every time you watch a film you learn something.
9. Think in English. Switch your thought from your mother tongue into English. It's great. Do it even for a few minutes every day and see how much easier you speak.
10. Before going to bed, you can think out loud what ever that has happened to you that day.
Good luck