That’s only 6 months to forget abuse it’s gonna take longer than that to forget, she may just starting to get use to y’all, remember being thrown into a new environment might scare her too
I hope you figure everything out and she ends up enjoying her new life with you, sending good vibes to y’all
Oh no, poor pup! Sounds like the breeder was abusive in maybe more than the trunk incidents unfortunately. I also vote for a behavior specialist for your puppy. I hope it helps your pup.