That is a legitimate concern. Loneliness combined with depression definitely deserves serious attention. Now is the time to consider, plan how to make it through the holidays safely.

Coping with the Holidays Guide PC Special Report (links)
Holiday Stress: A Resourceful Survivor’s Guide By Sherrie Mcgregor, Ph.D.
Coping with Thanksgiving PC Special Report (links)
Alone During the Holidays? Join the Crowd By Laurie Stoneham
Holiday Traditions By Marie Hartwell-Walker, Ed.D.
Family Stress at the Holidays, Part 1 By Erika Krull, MS, LMHP
Family Stress at the Holidays, Part 2 By Erika Krull, MS, LMHP
Depression At The Holidays By Erika Krull, MS, LMHP
Coping with the Festive Season: Tips from Clients (Part 1) By Gabrielle Gawne-Kelnar
Coping with the Festive Season: Tips from Clients (Part 2) By Gabrielle Gawne-Kelnar
Holiday Stress Survival Tips By Christy Matta, MA
How to Survive the Stress of Fall and Winter Holidays By Christy Matta, MA
4 Steps to Decrease Emotional Vulnerability at the Holidays By Christy Matta, MA
7 Tips to Smooth Over Your Holiday Stress By John M Grohol PsyD
8 Ways to Take the Joy Out of the Holidays By Marie Hartwell-Walker, Ed.D.