Anxiety attack rant, someone give me advice pls

The home wrecker that stole my dad really posted saying how she saw a kid steal flowers today from a garden and how it’s so important to teach kids not to steal or else we don’t know how they’ll grow up to be, and she really went on saying how she hates broken kids because then they’ll have to fix themselves when they’re older.... she literally told my dad that we are worthless and don’t deserve him!!!!! I am having an anxiety attack, I want to expose what she’s done to all her little followers!!! Why does my sister, mom, and me have to be quiet and my dad and her do whatever the fuck they want !!