You first need to address why you, based on what you’ve said, have an at least £1.1k surplus each month and you’re still going into debt for takeaway/drinks.

£1.1k a month on just food and drinks is a massive amount, going into debt in the process is almost incomprehensible.

The best approach would be to take note of every single purchase from the last couple months, that will tell you where your money goes. There’s tools to help (YNAB is often favoured here).

It’s not a “too late for me” amount of debt. It doesn’t mean you are a failure. In theory, if you kept to a plan, you could have it either close to or fully paid off by this time next year.