Go down to your local Citizens Advice Bureaus straight away. Take all your bills with and loan agreements with you. Speak to a debt councillor.
There are various options including, consolidating into one loan, IVA/VA (voluntary arrangement), bankruptcy (laws have changed so this usually lasts one year as opposed to 3 years) etc.
Really need to know a lot more information such as your employment status, are you a home owner, are any of the loans secured, what are the loans for, etc.
Make an appointment to see a Debt Councillor at the CAB