Hello braindead and welcome to this forum. You have come to the right place. I would advise you initially go to
www.iva.com where you will find a list of recommended IVA firms. Ring a few of them and they will go through your particular situation to see if IVA is the best course of action.
Depending on what they say, you may be advised to stop paying creditors and to build a contingency fund prior to your IVA being set up. Also, if your bank is one of your creditors or linked in any way - you will need to think about a new bank account whilst you still have good history.
Good luck and keep us posted. Try to avoid IVA firms that charge upfront fees.