Am I overreacting after accidentally messaging my dad’s cousin about his abuse?

I was in a fight with my dad, I messaged his 50 year old cousin to tell her how much of an ass my dad is. I told her he's been abusing me my whole life. Then she said she believes me, so I told her but she doesn't know what's it's like. I meant to say she does know because she was abused. I only realised yesterday, so I deleted the message and apologised to her saying I was meant to say she knows what it's like. It was just a typo.

She's said it's fine.

Am I overreacting after accidentally messaging my dad’s cousin about his abuse?
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