Hi! If you want to speak english very well, you have only one thing to do : speak day one. Find somebody to talk via skype or in real life. It will be hard first and you will do a lot of mistakes but it is ok. You have to do mistake to improve yourself. So speak! ;-)

well , you gonna have to practice English and watching movies too is a very important step

You can start to read English books for beginners with loads of conversations. It will help you to learn to speak. Also you can watch movies with english subtitles.