It's ok Carol to feel like you do. You have been daughter, wife, mother and now grandma, no wonder you are exhausted. You need to take some time out for yourself, discover yourself. I am 52 years old and this last couple of years have changed things around a bit. This is the first year I am on my own, my DS now having gone back to uni as some mates were going back too and he wanted to spend "down" time with them. Plus, he isn't a great fan of Christmas anyway. He was here for a while, but I am more than happy to be on my own now. I do get excited for things, mainly for Christmas, programmes on tele where I like the people on them. And I know they are going to make me laugh.
Do you still have any children at home? Are you still mum at home, as well as wife, running a home, babysitting, etc. etc., the list goes on. Get the bare minimum done for Christmas now and go and have a sneaky nap, recharge your batteries. Take some iron tablets. Are you through the menopause? It all adds to taking it out of your body.
I practically ran out of the garden centre today as it was noisy, busy, music blaring, too twinkly and sparkly (why do they overdo it?) and just annoying really. So back home to peace and quiet and a sleep later in my lovely comfy bed. Don't worry about it, just listen to your body and go with it. Take care. X