Will my Grandmother make it through another year?

I am pretty sure my Nana was born sometime in 1932 and she was expected to pass away of lung cancer and back cancer March last year, thankfully she's still hanging on, but sadly I have a strong feeling that sometime this year she won't be around anymore and it keeps bugging me and making me real sad.

P.S. this is my first time commenting on these, please go easy on me :)