Welcome to the forum, i am sure you will find lots of useful information along with help and support here
You can only do a DRO if your debts are under £15,000, total assets of less than £300 and a total disposable income of less than £50 per month.
You could write to creditors and tell them you are in financial difficulties and you are currently seeking advice with a view to finding a solution to your debts.
Under the OFT Debt Collection guidance creditors should suspend recovery of the debt where it can be evidenced that the debtor is developing a repayment plan or receiving assitance from a appropriate 3rd party representative.
There are firms on this site who have offices in NI, including MCD and Melanie Giles