No need to feel bad when it ends, because a new year is coming, praying that we all will see the New Year.
I totally get what the OP is saying. This time of year people are nicer, more friendly, and more helpful and seem to care more about others. There is just a feel in the air. Yes, I guess if you have no family it would be depressing. And when family dies and are no longer here it is different and kind of sad. But no need to be a gloom and be all down on people who want to celebrate the holiday. I think even if I were alone I would still put up a tree and I would do things myself to make it special for me.
Christmas is not what it use to be for me either. As you get older things change. People die. But that is no reason to be hateful to everyone else screaming I will be glad when it is over.
I use to work in retail (part time 2nd job) and a woman came thru and bought about 12 of the $1 deodorant for women and was fussing about having to buy presents for everybody. She bought a similar item for men. She literally throws the items at me and slams stuff on the counter telling me how they can be happy with it or throw it in the trash she really doesn't care. I can still see that in my head so clearly. That was probably 15 years ago. My reaction today would be a lot different. lol. I would probably give her an ear full.
If you don't want to celebrate Christmas then don't. But don't be a gloom on everybody else. Don't fuss and complain because you hate the holidays. I like this time of year and yes, it is kind of sad when it is all over. You wait, you plan, excitement builds, and in just a few hours it is all over.