Yes, you will survive holidays. Number one, because you have to (there is a 13 year old who loves and depends on you). And two, because that is what we do.
You said you have done therapy - still going? If yes, tell them that you want to set goals towards easing your loneliness. It might be getting involved in a hobby, taking a class, inviting people to your house more often, getting involved in a church...back to basic, GAL things. Friends are the family we get to pick - you might need to pick some new ones.
