Can I take Olanzapine for depressive personality disorder?

Hi doctor,

I am a guy , 23 years old and I was suffering kind of social anxiety in my childhood and in my teenage and that is why I visited a psychiatrist when I was 18 years old, five years ago and he prescipted me zoloft 50 and olanzapine 2.5 without telling me the exact problem and by starting taking them I sarted getting some relationships and better social skills but recently I visited him again because of feeling not okay and getting angry easily and he prescripted me the same old medications plus third one which is sodium valproate 200. He told me that it prevents person from getting angry and keeps the mood stable and he told me that I have "depressive personality disorder". But my fears and my family fears is about olanzapine and its side effects. They see it irrelevant for depression and related to psychosis. Do I really need olanzapine?