I think introverts need to accept themselves as they are and build from there.
But its never as simple as "You are an introvert" , "she is an extrovert" etc. These are
not personality types, they are merely scales, if they even measure what they purport to. Its never measured in terms of
what you are - and at best these 'dimensions' are only validly measured in terms of
social extroversion, not introversion (thats my opinion - but you'll see these tests don't tell people how introverted one has been, only how extroverted.)
These tests seem to me a bit like in the film
Dead's Poets Society the text-book that Mr Keating (Robin Williams) told the kids to rip out the introduction of. It was measuring poetry plotting it on graph that was the problem, and assessing it in that way, and claiming that some mathematical way of assessing poetry would yield understanding, or show how great the poet was.
https://www.youtube.com/watch?v=LjHORRHXtyI
I still think that the problem for christians is psychological-typing - or being typed by others and then accepting oneself as
that type rather than as saved by grace and a new creature (a work in progress)
becoming. Romans chapter 8 and chapter 12.
You can let Myers and Briggs, or Jung mold you if you want, but you'll always be their product, and they will have set the limits on who you may become.
Myers-Briggs was for only
some workplaces (particularly a post-war industrial workplace, and even more so for women in the industrial workplace due to post-war labour shortages), not for places of worship, missions, or fellowships, or families, or finding a husband or wife. To use it in any of those ways is a complete misunderstanding of its original limited applicability.
Clinical psychologists rarely use it, and its validity was questioned long ago by the Educational Testing Service. Its more recent popularity is due mainly to
marketing.
http://www.indiana.edu/~jobtalk/HRMWebsite/hrm/articles/develop/mbti.pdf
Psychological typing is putting people in a box, in a box for others convenience.
People are in a process of becoming - so the moment you put yourself in these boxes you cut off some if not most of the possiblities of becoming the person you were made to become.
Love leads to understanding, just as faith leads to understanding.
To say again it is WRONG to label someone, or use a reductionistic method to define a person, as though that had some determining quality - it doesn't have anymore power over you than what you give it, but others can sometimes browbeat another with these terms as though they knew what they were talking about.
Even if Jung had some insight here he used these terms esoterically, and not as straightforwardly understood, and that only adds to the confusion.
Neither of these descriptors are that useful anymore in my view.