Hi rosebottom and welcome to the forum
As you have very few unsecured debts, and a lot of secured debt, you may need to think about consolidating your mortgage to interest only, or even selling and downsizing, in order to restructure your budget. If not, you may rely too much on extended lines of unsecured credit and end up in a far worse position.
Try and get the majority of your outgoings paid on a monthly basis, in order to monitor your spending more carefully. And cut back on non-essential expenditure for a few months to see how you manage.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk