My lights went up weeks ago, I've taste-tested half the new Christmas snacks in the Tesco, I've been watching Christmas movies since Halloween ended, and I even subscribed to the Hallmark Channel's streaming service to get more (99p/month for the first three months, absolute steal).
I used to be dead cynical about Christmas as a festival of commercialism but turns out, you can largely skip that and just have a nice time with colourful lights and loving memories with your nearest and dearest.