This video explains the importance of correct pronunciation. It focuses on word and sentence stress, intonation and pauses between phonetic groups. To improve your pronunciation, you can watch series and films in English and listen to podcasts. Remember to not speak too quickly, to make sure you are speaking clearly, it is good practice by recording yourself speaking in English.
By following some of these tips, you will be able to thoroughly prepare for your IELTS exam and achieve your potential!