Thank you all for your advice.
At present I am basically doing exactly as has been mentioned, but wasn’t sure which card to focus on.
I won’t respond individually as that would take an age, but in summary:
No medical aid, monthly expenses are rent, food, petrol, vehicle and insurance, credit cards, a small life insurance policy and cellphone.
Most of the debt was due to vehicular expenses and trying to prevent losing a job, not really random splurging. Either way it’s there and needs handling.
Thank you for your responses - in addition to budgeting and self discipline, I shall pursue the overdraft/ personal loan route and see what’s on offer.
The real solution of course is to earn more money, and that’s a large focus of my energies at present.