What happens to my home in Chapter 7 Bankruptcy?

I have a home with a first and second mortgage on it. Both mortgages are undersecured, meaning that they both exceed the current value of the home. I owe a lot of money on credit cards and other unsecured debt. I lost my job about a year ago and my savings have been exhausted. What I want to know now is if the credit cards and unsecured debt can be discharged in CH 7 and whether the first and second mortgages can be discharged? I feel I am responsible for this financial mismanagement and so I would want the bank to take back the house and foreclose on it so they can get something back, but I would like a FRESH start so that I don't owe anything to anybody after filing for CH7. THANKS!!!!!!