Hi there, I'm so sorry you have to go through this! It seems like you've got a very complicated relationship with your family. I understand why it might be difficult to acknowledge this is trauma as there is no physical violence involved.
However, from what you describe and your symptoms, it seems to me it truly might be CPTSD.I'm very sorry to hear you're currently unable to see a therapist. Do you think using one of the online therapy options would be possible for you?