All skills are linked. Listening, writing, reading, speaking – they’re all linked. If you’re main goal is to learn how to speak better, it could help you to write phrases down and repeat them, or listen carefully to what other people say. If you want to improve your writing, reading will definitely help you with sentence structure and grammar. If you want to improve your pronunciation and vocabulary base, you can listen to music or watch films and copy what you hear. You can do this in the comfort of your own home. Even if reading is not your cup of tea, or you feel too lazy to write, get motivated to do a little bit, even once a week. It really helps your overall progress.