Thanks for the valuable inputs.
Well it seems like your daughter has a particular personality type called as Borderline personality/disorder which seems to be the root cause for her typical traits and behavior. You see people with such type of personality are overly dramatic , attention seekers, constant liars and deceive others , manipulative and exploitative often using emotional blackmailing , have shallow emotional quotient and attachment, known to use their charm to take advantage of others for their own incentives, not-trustworthy.
I am sending below a link which can give you more information about Borderline Personality disorder.
Now many times it so happens that such type of personality trait/ disorder comes in the child from his / her biological parents and since she is adopted so there is a huge possibility that she possibly incorporated these traits from any one of her parents at least.
Now this borderline personality disorder needs to be evaluated and confirmed by getting her thoroughly assessed by a clinical psychologist and upon confirmation of the same she shall be started on a specific therapy / counseling called as CBT ( Cognitive Behavioral Therapy ) which is the most suited therapy for managing such type of personality disorder. This therapy will be carried out in once a week interview session format spanning over 12-16 weeks and it will try to alter the thinking pattern of your daughter thereby modifying her decompensating borderline behavior and attitude.
So the first thing that you got to do now is to find a good clinical psychologist ( seek referral from your family doctor ) and get her thoroughly assessed for Borderline Personality disorder and then started on CBT if the condition is confirmed.
You see at her young age she is quite likely to respond well to CBT and overcome her condition which if ignored now will later become consolidated and much difficult to manage.
I hope this helps.
Wish you all the best.
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