You are a distinct individual and as such you possess a set of characteristics, both natural and acquired, that reflect your personality, define your identity and qualify you for a specific role that no one else but only you can play in this world. No matter what type of personality you have, your identity predisposes you to be the best in a specific field.
“The value of identity of course is that so often with it comes purpose.” Richard R. Grant
The path to the discovery of your life purpose passes through the realization of your true self which is the core of your identity. You are neither an accident nor a mistake, and who you truly are is directly related to the reason of your being and to its objective. Yes, your life purpose is interwoven with your identity. God, knowing what your mission on earth would be, gave you the temperament you possess and allowed you to pass through all the circumstances of life that you have been through so as to mold you.
As mentioned in the above introductory note of this page, it does not matter what type of personality you have, your identity predisposes you for a specific mission that only you can carry out. That mission of yours is linked to your uniqueness.