Can you have borderline personality disorder if you have a few traits with psychosis?

Yes: Yes, but the psychosis is neither a fully formed delusional system nor does it consist of lengthy commentary about your behavior. Most people who have hallucinations and borderline personality disorder only hear their name being called.

Yes: Borderline personality disorder can include transient psychotic episodes, typically when the person is in great distress, there are several forms of psychotherapy that have proven effectiveness for borderline personality disorder-- look into it if you have not already done so, depending on you specific symptoms, there may be a role for medication as well.