السلام عليكم ورحمة الله وبركاته أختي
Seek treatment from professionals if you are diagnosed with borderline personality disorder. You can also seek legal Ruqyah.
Prophet (ﷺ) said: ‘Seek treatment, O slaves of Allah! For Allah does not create any disease but He also creates with it the cure, except for old age.' [Sunan Ibn Majah 3436]
Make sincere duas, specially while in sujood.
Abu Huraira (رضي الله عنه) reported: The Messenger of Allah (ﷺ) said: 'The nearest a servant comes to his Lord is when he is prostrating himself, so make supplication (in this state).'
May Allah grant you a speedy recovery!
آمین