@lisman1408 - perhaps it's time to agree with them? And since you tell them that you agree then you can also remind them that they need not mention it again.
I agree with @trixi1313 someone needs to be your advocate with your sister. I kept mine away. Right now you are number 1! Your mental health has so much to do with your total healing. You might need to separate yourself from those people who are insensitive to your needs and well being.
Can you or someone else set some limits so that you are protected? This is not the time for being polite to people who don't have your back!