Hiya,
So sorry to hear about the loss of your grandma. In any family, it seems more often than not that the Grandmother is the stronghold of the relations.
It was a terrible loss to me when my Granny passed, but I kept in mind that she was a happy person who never complained, whether sad or hurting, and she was strong. I did of course have a break-down, which is expected and healthy, but I also jumped back up quick and got on with my life. Why? That's what she'd want me to do.
I have many great memories of her, and I dream about her often and it's happy times in my dreams, so she lives on in my heart, my thoughts, and in heaven above me.
I'm sure you were well loved by her and she'll always keep watch over you.
With regards,
Kev