There's a fantastic app called Shopmium that I've used for almost 4 years now and thought I'd mention it in case anyone wanted to join too!
It might help mitigate the cost of living a bit and still allow you some treats. They have offers available in all major supermarkets.
It basically offers free or reduced groceries via cashback.
In the last month I've had :
Pringles for 65p
Free milk
Free Cheese
Free Organix baby products
Free Rubicon drinks
Reduced cooking sauces and dips etc etc.
All you do is buy product as normal then take a picture of the receipt on the app, scan the product barcode and submit. Takes seconds.
You can even check you're buying the right product as they have a barcode scanner on the app you can use in the shop before you purchase.
They pay the money back promptly, and I personally haven't had any issues while I've used it!
If anyone wants to join Id be grateful if you'd use my referral code 4r3e9
or if anyone wants any more info please ask.