Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...
your sister's drama is her issues. you have to sidestep those things.
If that doesn't work personally I would tell her she is no longer welcome in my home nor can she contact me until she changes her behavior and possibly seek some counseling to stop this behavior. It might even be a good idea for you to talk to someone as well as they can help you cope with your feelings and guide you in steps to be able to move past this. Hang in there and try to stay strong wishing you better days ahead:)