She said that you get more grateful for little things.

This part really got me, I feel old already because this is basically my watchword in life. Appreciate every little thing that life throws at you.

Your grandma still looks very beautiful, can imagine how lovely she was when she was younger. I do drop by at my grandmom's place sometimes when I go to church. I noticed she loved having someone around her so she can talk about most of her interesting childhood stories.
You're also right about us having just one shot at life so we need to live it to the fullest.