Equally important is your concentration on hearing sounds within each word and attentively reproducing the sounds you hear. Perfect pitch is a rare ability of a person to hear and identify sounds, 1 in 10,000 people have perfect pitch. Some learners are better at hearing sounds than others. Improving your ability to hear sound variations requires practice. Some will require more practice than others; some might need a voice coach to assist them.
Be focused on listening carefully to:
• The pronunciations, how the word sounds.
• which part of the mouth a sound (within the word) seems to be placed in, as you say it.
• how that sound varies as the shape of your mouth changes.
• the various sound elements (the vowels, consonants, tone, etc.) that make up the words.
• how the word that is uttered sounds to yourself.
• how the word that is uttered compares to what you hear others say.
• words that may sound similar /words that may have a similar meaning.
Listening carefully to the sound variations within words and sentences and noticing the variations and aspects of how they are produced is critical.
You must also hear the sounds you yourself are producing and compare them with the word sounds you hear. If you cannot identify the differences between the sounds you hear, and the sounds you speak, these exercises could be counterproductive as you will improperly train yourself with the wrong pronunciations. I suggest you employ the services of a voice coach to improve your hearing and reproduction and then use these workshops as reinforcement practice.