Hiya, BlueEngel, Sounds like you have a real case of what we immigrants call the "Homesickness"!! And yes, it's a helluva jump from the warmth of Califa to the biting winds and deep freeze of Wisconsin. It really is a culture shock situation and something that you have to learn to live with.
As for your missing your family, all I can suggest is that you set up your IM in Windows or Skype and chat verbally for free to your folks at home as often as they're on their computers... I do it with my wife in South Africa and it helps that unavoidable separation anxiety we feel being apart.
Welcome to the site here and try your best to get out and get into the life of being a Wisconsonite... you're young and you could learn how to do all that outdoorsy stuff like skiing and skating and ice fishing and snowball throwing ... Hey, Christmases are much more "authentic" in our Northern world!
Patrick