Hello, Nargis. You're right ..Pronunciation is a very common problem for beginners who learn English language and even for many English-speaking people.. Personally, for making better my pronunciation, l listen to music in English much, read as many articles and books as I can and also the best way to achieve your goal is to pronounce English words many times..However, pronunciation is one of the hardest skills to improve because it is a performance skill. It is something that you have to practice. So I wish you good luck Nargis in improving your pronunciation..I hope my mini-tips above will help you correct bad habits and improve your pronunciation so that you can speak English confidently!