My sister just passed away.
Wow, That's unfortunate. Sorry to hear. were you close?
We were, it's so tragic. Cancer spares no one.
I hope you are finding ways to cope with your loss. That can't be easy to deal with. 
It really is difficult, I've started therapy recently.
I hope that helps you and that you find peace. 
I hope so too it's a difficult time for sure.