Standing charges alone will be about £26 a month. You're basically using nothing there. And £15 a week for food, for a family or just yourself living on porridge>?
14 Jan to 14 Feb. this includes heating on some days as it got cold (I'm on Octopus tracker so rates change every day)
Electric
14th Jan 2024 1054.6 Smart meter reading
14th Feb 2024 1159.3 Smart meter reading
Energy Used 104.7 kWh @ 14.73p/kWh £15.41
Standing Charge 31 days @ 45.99p/day £14.26
Subtotal of charges before VAT £29.67
VAT @ 5.00% £1.48
Total Electricity Charges £31.15
Gas
14th Jan. 2024 64.2 Smart meter reading
14th Feb. 2024 80.8 Smart meter reading
Consumption 16.6 Units (m3)
Energy Used* 189.9 kWh @ 3.69p/kWh† £7.01
Standing Charge 31 days @ 25.56p/day £7.92
Subtotal of charges before VAT £14.93
VAT @ 5.00% £0.75
Total Gas Charges £15.68
Total charges for bill £46.83
So yeah using hardly anything. Low rates help. Gas is usually like £2 a month usage.
Food wise it's not that difficult. No brands. Frozen veg etc. Take advantage of meal deals at Iceland (24 chicken burgers for £10 etc which last all month or longer) I do have small portions though.