Is it normal i feel depressed, bad, down in christmas time?

It sounds like you miss your family getting together, and that's what adults also enjoy about Christmas. Perhaps you could organize a get-together with your family this Christmas, or just a get-together in general, it doesn't necessarily have to be for Christmas.

It is a bit of a bitter-sweet thing Christmas... isn't it?

I used to love Christmas. I still like it, but not as much as I used to. All the holliday joy, the family together, expecting presents, opening presents. Playing with my cousin, building stuff from lego, watching the newest Scooby doo movie (1998 Scooby doo on zombie island), (They used to air Scooby movies, or other cool stuff on Cartoon network), watch the pretty fireworks, seeing the happy faces of my family. Now, I'm 21. My parents aren't as active as they were back when I was a kid. They are also more serious. All my grandparents are dead ( I loved spending time with them and my parents. I really miss my grandparents). It was all perfect. In my grandmother's house. In the countryside. Small village, lots of snow, a big fireplace burning and a beautiful christmas tree. We still have a christmas tree, but now it's just for the tradition. The joy we had putting all the decorations on it is nearly gone. With the financial crysis, business for my dad and for me hasn't been that well. So my dad worries about the company. I worry about goods that are underway.
So now, Christmas doesn't really bring that much joy.
The only upside is that I am still happy to celebrate Christmas with my parents and my girlfriend and her parents. After all the family stuff is done, my mum goes to bed, my dad watches tv, girlfriends parents go to the hotel (They are german) and me and my girlfriend? We do what most young people do. Ring up some friends and go to the pub and drink. That manages to remove my sadness. It's just the next Christmas passing by and all of us getting older. For me no, I'm 21, but for my parents. I don't even want to think about what happens when they eventually die.
Then probably Christmas won't be a holliday anymore. The memories are there. Happy memories, but when you can't relive them, you feel really down.

Probably as time goes on, I get older, have a family of my own, Christmas will be nice once more... We will see.

My Father died on Christmas Eve so it is always a sad time for me. Wish I could shake it though.

Im gonna sit on my roof with a 12 gauge, shoot that fat cocksucker take the presents and cook me some venison.

I understand where you come from here, when your a kid it seems great all those presents to open, you get all excited, had your friends round, cant wait to tell your friends what you got, the time off school, all the family together, visiting your grandparents or whatever, out playing in the snow, making snowmen, visiting father xmas & it all seemed magic, but then you grow up, & its no longer the fun it used to be, your parents get old/ may pass away, your family all spread about, your grand parents are no longer around, unless you kept in touch & are lucky you don't see your old school friends anymore, you have to go out in the freezing cold to work, after a shift your car is freezing & wait for the ice to melt, all the dark gloomy evenings, roads maybe closed due to snow where you have to travel to etc & things have changed & are still changing when I was a kid everybody seems to want to work & work longer & open for longer & longer so there you are stuck at work whilst some lucky ones are at home infront of the fire, everything seems to be getting more & more expensive & people have to have the latest gadgets, but besides all that if you do have children then it should be made a magical time for them like it was once for you, if not & you hardly see anyone over xmas & don't have a boyfriend/girlfriend then yeah it can be a sad lonely time for some & rather depressing, i'd rather have spring/ summer personally when the weather is nice/ sunshine

I dont like how i dont have the money to get the gifts i want to get everyone how its cold and how the daylight time is getting shorter makes me sad :( so I agree

I could write you a poem OP if that's okay with you

just being around people works for me, I don't have to stress out about anything. I know it sucks changing the way you have to celebrate christmas but it could change for the better if you have someone special around maybe say your close friends, boyfriend, girlfriend whatevs