Before you can fix anything, you need the full picture. Sit down and list every debt: credit cards, store cards, Christmas borrowing, overdrafts, buy now pay later balances and any money owed to friends or family. For each one, note the total balance, the interest rate and the minimum monthly payment.
If more than 20% of your take-home pay is going towards debt repayments (excluding your mortgage or rent), that is a warning sign. At that level, you are likely to struggle without making meaningful changes to your spending or seeking professional help.
Once you have the numbers in front of you, prioritise. Priority debts like council tax, rent and energy bills should always come first, as failing to pay these can lead to serious consequences including bailiff action or disconnection. After those are covered, focus on the debts with the highest interest rates to reduce the overall cost.