Have Borderline Personality Disorder, Excessive Anger. Should I Go For A Psychiatrist?

hi, my name is Puneet and j hv been married fr 3 years now. I have been having a lot of issues and fights wth my wife mainly on issues related to my mother and sister. she gets extremely angry, abusive at times. also she feels my mom and my sis insults and mocks her. i have a 2 yr old daughter. my wife feels my sis wants to take away my daughter away from my wife. as a result, last week, she consumed some medicine in the attempt to kill herselves. since then i hvae been reading a lot and i think she might be suffering from Borderline personality disorder. when i told her that there is some problem with you and we should see a psychiatrist, she refuses to acknowledge that the issue is with her and she keeps blaming my sis for it all. Please guide me how can i make things better from here on