As everyone else says...
- Food bank
- buy and cook cheap food from scratch.
Buy a big bag of value oats to make porridge for breakfast. Make with water not milk.
Cook rice, pasta, potatoes, lentils, beans all that kind of stuff. Don't buy jars of sauce, buy 35p value tins of chopped tomatoes. It plum toms are cheaper buy those and cut with scissors in the tin.
You don't need to eat meat.
Frozen veg is cheaper and less wasteful than fresh so keep buying value bags of peas or whatever.
Stop snacking on biscuits. Actually quite expensive and do nothing nutritionally for you.
For lunches get into soups - I love carrot and corriander. Big bag of value carrots, one litre of stock, one onion and spices (cumin and corriander). Would do 3 or 4 lunches and freezes well.
Suppose of you don't have spices in the house then it will be reasonay pricy (bags 60p each in ethnic supermarkets) to buy them suggest buying a couple of key spices you like to flavour your meals with.
Is there anyways who could help you meal plan and show you how to cook from scratch?