hello user . i understand your concerns - If this behaviour has devloped since few days or weeks or months only and characteristically different from her previous self - then this kind of excessive self confidence , over grooming , disrupted household functioning may indiacte towards a episode of manic illness especially if accompained with other symptoms such as persistently being happy or irritable out of context - overspending,oversexuality,overreligiosity, rapid and increased talks , overfamiliarity with persons etc - however otherwise the symptoms sometime are present as hyperthymic personality traits in some persons since beginning - anyhow you should consult her with any good psychiatrist in your vicinity who may treat her with mood stablising medicines and/or with psychotherapy . Take care