Pish and tosh! Never mind the humbug stuff. You could volunteer at a hospital visiting little kids or somewhere that's serving meals to the homeless or delivering meals to homebound elderly. You could even spend a few minutes visiting with somebody you're delivering a meal to; they'd be so grateful to see another human and hear a few kind words.
Buy yourself an already-decorated little tree, take it home and outta the box, fluff it up, plug it in. Instant Christmas.
I have my Best Aunt's ceramic tree that she made years and years ago. I only have to plug it in.