I can't say that I've ever experienced "holiday blues" - but that may be my family's outlook on how life is. We tend to accept whatever life throws at us and make it work for us the best we can. Our family is a bit spread out - most of us are within driving distance (2-3 hours), but my baby sister and her family are quite far away (we're in the mid-west, first she was in Florida, now they are in New England on the coast).
We just accepted that we wouldn't always be able to visit every year, and although it was sad, it wasn't the end of the world. We send pictures, email and call to keep in touch and up-to-date. On the holidays, we try to call whomever is not able to gather with the group so we can at least spend a little time "together" in spirit. (And BTW, her birthday is on Dec. 21, so I know you're feeling about your b-day on Dec 25 as she'd always complain about her "combination" presents growing up)
My other sister has 5 kids, and when they were smaller, and it wasn't very feasible for them to travel to the family, we all adapted and those of us who were more mobile traveled to them instead.
Sometimes things would get in the way - unexpected work, colds, what-not - and if one of us couldn't make it, we'd be disappointed, but would take joy in hearing about the adventures we missed and tell them we'd see them "next time" whenever that may be.
Maybe start by focusing on your immediate family (you, husband, child) - and make that your official holiday. That way you get to enjoy all the happiness your family brings. Then if you are able to visit extended family (parents, brothers/sisters) - look at that as added bonus.
I hope you find a way to lift your spirits and enjoy the holiday season - maybe you can start some new traditions that will carry you forward into a new era of holiday celebration in your life.