I had a fairly subdued Christmas but did visit my siblings. But I can envisage a Christmas where I was on my own though. I think the secret is to anticipate, plan ahead, and be happy with one's own company. If you haven't your entertainment / interests ready, be they books, TV, music, PC / Net, other hobby, food, drink, whatever; then you are liable to sit there just feeling sorry for your situation and building up a depression. Keep busy with things you enjoy and you'll have a great time.