Mari you sound stressed to the max and depressed.
I too would go and get your hair done, that always makes me feel better, and it will get you out of the house and do something for you.
Maybe then you might just feel like going to the party, even if just for a little while.
I would also call your p-doc about being afraid to go to sleep at night. Do you have any meds for sleep?
Ask your husband to either do the bills or help you with them, he must see that you are not up to par.
Lots of Hugs, Nikko