Hi Anony,

I'm so sorry you are losing your sister for a year. I know that must be very hard. I do hope that as the time goes by, it gets a little easier for you.
It sounds like you will need to be there for your mother as well. Maybe the two of you can help each other get through this.
You know, time does fly and a year will be gone before we know it and this will be just another bad memory.
Wishing the best for you and your sister,
Take care,
Linda