I wouldn't get too hung up on a diagnosis provided by your doctor. Mental health isn't reaaaally their thing, and your doc likely wanted to just get you started on a medication that would help a number of different things (not just depression - the med they prescribed will likely help with anxiety too). The label is less important than the managing of symptoms. I would suggest having a thorough mental health evaluation by a psychologist or psychiatrist. They are the one that would be able to help you tease apart your feelings about a personality disorder, and the anger you've been experiencing.

Best of luck
Jacq