OP, my 2 kids were 10 months and 9 months for their 1st Christmas. I bought a bib/babygro set saying baby's first christmas and a wee toy.
Please, please don't get down on yourself because your baby will not know. To them it is just another day.
Slightly off topic but in the same vein - Myself, DH, DD and DS lived abroad together as a family from the time the kids were very, very young. I missed being at home at Christmas but we made our own friends and traditions.
Fast Forward to 18 years later and both DD and DS are back in our home town and living in our house. All my family and DH's family are there so the first year for me without them was really terrible. I was an empty nester and my kids were having a wonderful Christmas with family. I had never felt so alone and I was pretty shitty to my DH the whole day. I woke up on 26th December 2012 (I think) and it was all over. I had been a shite to my DH because of what I thought I was missing. I realised that Christmas is what you make it. It is only one day.
Since then although I am not a fan of Christmas day I have 'suggested' what I want for the main on Christmas day. DH loves to cook and experiment, he always makes Scotch Broth and I always do dessert. This year he is doing Turducenqua - quail breast wrapped in chicken breast wrapped in duck breast wrapped in turkey breast and there is pate or stuffing or something inbetween! He has been searching for hints and recipes for months and we now actually have all the stuff in the freezer. If it goes well then fanbloodytastic, if not we will always have the soup and the roasted tatties and veg.
What I have tried to say OP is baby won't know and it's really only one day. Don't buy into the consumerism and the idea that Christmas is like the Hallmark Movies. Have a lovely day and I hope your LO enjoys scrunching the wrapping paper :)
To all Vegetarians who read this - I am sorry if I made you feel ill.
Merry Christmas to all