Dear Bun:
My suggestion is that you take better care of yourself, no longer “running on empty”. Learn from your experience with your sister (of which you shared in a previous thread as well) and do not repeat the same mistakes that will lead to the same results (her staying with you in your place).
Protect yourself from unnecessary distress. After all, what you did so far for your sister, didn’t help her, not beyond the very temporary.
anita