I think someone cursed me

So I met someone on internet and thought they do free reading so I asked them if they can do one for me too. Then they say they want donations and I said I don’t have any money as I’m teenager and at school currently. Then she did me a reading anyways and I thought she does it because she wants to for free then she asked for money again and I said I don’t have any. Then she start threatening me that she will make black magic on me and ruin my life. Im crying so hard what should I do? Am I doomed?