Unfortunately the holidays have the exact opposite of the desired effect for a lot of people. It can be a super depressing time of year, made all the worse by everybody acting all happy and talking about the excitement of xmas.
I really do think that the act of being open and blogging about your experience is a healthy step in the right direction. It might not feel like much now, but blogging here is a lot like group therapy except you get paid for it :-)
Maybe you can set a short term goal for yourself, specifically to improve your mood in the coming weeks? Not to try to go from 0/10 to 10/10 - but maybe just aim to from depressed to a like 6/10 decent mood, and then from there. That seems to be how it works for me, its always small steps to get out of a slump. And you could blog about it to have a way to talk about your emotional states and work through some of the depression.
Whatever you do don't stop posting. We appreciate having you here. I'll try and keep an eye out for your posts in the near future to see if I can help out or at least be a listening ear for you.
Cheers and decent holidays to you @rodeo670