Hi Joanne and welcome to the forum
If your permanent address is now in France, you can declare under their Court led procedures - but there will be a cost to this which you say you can barely afford.
Given your circumstances, I would write to the creditors and explain you have no money to offer them and invite them to make you bankrupt. They probably will not, but there is nothing else you can really do and I doubt that they will pursue you terribly hard.
If your circumstances change, you can then always recommence the payments or pay for a bankruptcy application.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
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