It's a plan to help teach you about managing money like our grandparents did. Not relying on credit.
First is to quickly build up a £1000 emergency fund, because life happens and there will be things that you need to spend money on which you could not plan for in advance.
You get on a zero based budget - that is one where you decide what you will spend in each category and decide before the month begins, on paper (or digitally) and you stick to it. Zero based because you give each bit of income coming in an allocation, so the end result is zero... you have spent it all, but on purpose, with a Savings category and a debt repayment category.
Baby Step 2 (so after you have £1000 emergency fun) you list your debts smallest to largest and you get real intense about paying off the smallest loan. By tackling each debt in turn, smallest to largest, you teach your brain to pay off debt, as you see quick achievement of the goal at first.
Baby Step 3 is a three to six month emergency fund. I am so glad I have this as I have just been informed that I am being made redundant from my main job... so I have my BS3 Emergency Fund, so I have money in savings to live on.
More about the baby steps: www.daveramsey.com/baby-steps
UK Based Facebook Group (unofficial): www.facebook.com/groups/1625701281083011/
A good video to watch as a starter: