I hate the holidays because I have no family
Don't you even have friends to visit?
I don't know anybody.
Holidays can be awful even with family so it is okay to hate them for any reason especially if it is because you have nobody to spend it with. It is acceptable to spend time with yourself on such holidays.
I don't want to be alone.
They have community events around the holiday like church potlucks or parades. You can go out and meet some people and have a good time with strangers if you like. You might even make a few friends in the process!