[hocus pocus]

Apologies for my late reply, I didn't see this earlier.

I'm sorry to hear about your sister's expulsion and the possibility of moving again can be tough. I agree with you in that you shouldn't have to move because of your sister's actions. You didn't do anything wrong and you shouldn't be punished for that but I think your mom might want you to go with your sister to support her. Since you said your parents aren't listening, I suggest writing a note and leaving it somewhere for them. Explain what you've said here; that you are just getting used to living where you're at and you'd like to stay in one place for a while. Maybe you can do some research to find some facts about what moving so often does to someone's mental health, and you could also tell your mom that you'll help with household chores.

Keep me updated if you'd like.