I've stopped hating it.
DM taught me to be Xmas-averse by sliding slowly into undiagnosed SAD related depression from the middle of Nov when I was young. By Xmas Eve (sometimes a few days before) she'd have picked a massive fight with my DF and we'd have a miserable Xmas with my parents in pronounced not-speaking mode, which would usually last through until end Jan/mid Feb. Since having her depression dx'd (after I'd left home) she's been better.
I really didn't understand, in adulthood, why I got into such a panic pre-Xmas. Some excellent talking therapy a few years ago finally made it all click. Don't get me wrong, I always made a big effort for the DDs but underneath I was panicky and seething.
Nowadays, I actually take small quantities of pleasure in it. That said, we're v lucky as neither DH nor I have demanding DPs who expect us to be with them on the actual day and are pleased with us visiting at some point between Xmas and NY. I get the cards sorted by writing 10 per day for a week. DDs are more than old enough (15 and 18) to decorate the house and tree and think about and buy the presents they want to give. I've clamped down on the quite mad levels of present buying that we used to do (DDs, nephews and nieces get pressies, adults get a decent bottle of wine, DPs get books) DH and I give token gifts to each other.
I don't find lunch a hassle - it's just a poshed up roast and I can cook those 
I think the other thing that helped was just stopping that whole Woman & Home Xmas malarkey. I'm happy for those who wish to be ponce-tastic to have at it and have fun. I don't want to be, so I've stopped thinking I should be aiming for all that.
That said, I agree with PPs who have said every other year/every four years. That would suit me down to the ground!