First listen to songs, watch videos & films, in order to see how the language is used. It will be easier to continue from there, after acquiring the basis of the language as native speakers do, by listening to others speaking it. Then you can start learning alone from a coursebook or with a teacher, whichever you prefer. After learning how words are pronounced, you can practise that skill as well, first talking to yourself to gain confidence, then with a native speaker or English teacher.