Keyser, I am so excited that you are providing support for her and that she is feeling better. I'm glad she is getting good treatment.
Could you subtly point out to your sister that further involvement in the organization wluld likely be bad fof her mental health?
Some JWs seem to believe that suicide attempts after disfellowshipping are because of shame at having done something so bad that they needed to be disfellowshipped instead of the horrible practice of disfellowshipping itself.