You can definately not be sent to prison any more for being in debt - so long as you have not committed any criminal acts such as fraud and I am sure that you have not!
From what you say bankruptcy is definately an option for you, assuming that there will be no money coming to you from the house sale. It is difficult to see any other solution if you are going to have no income to fund your creditor repayments.
So sorry to hear your bad news, but concentrate on what is best for you and your daughter into the future, and a fresh start seems the best first step. Good luck.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
To have me propose an IVA for you, please visit:
http://www.melaniegiles.com/ivaEnquiry.asp
See customer feedback at:
http://www.iva.com/iva_companies/IVA_Advice_Bureau.asp