I'm scared and i don't know what to do. i hear her voice telling me how wrong i am and it's my fault. what do i do?

It is understandable that you are scared. Talk to your parents, you need to see your doc for a thorough evaluation, diagnosis and a treatment plan.

I am sorry you are hearing voices.You could be going through a rough phase in life, you will get over it. Talk to your friends and family members to discuss what is bothering you.Think of happy times and focus on things that motivate you. If you need professional advice, please dont hesitate to call the private confidential line of SAMHSA.https://www.samhsa.gov/find-help/national-helpline