['When I was much younger, my grandmother took care of me while my mom worked. I need to send her something.', 'Sounds like a great lady.  I am glad you are appreciative of her', "Absolutely, I get busy at times but I think it's important to remember the people who got me here."]
Yes it is.  You should take her out to dinner or something to say thank you.
When I was a young child, my grandmother took care of me while my mom worked. That was so, nice I need to send her something.