Are you on all the food giveaway sites? Too good to go etc?
when do you next get some cash?
if you work is there anyone employee assistance schemes you can access?
after you have sorted the here and now...
I agree with the poster above who said buy a big packet of chicken legs / thighs and cook with a bit of salt/ flavouring. Nice hot chicken leg meal straight away and then use the rest with salads, in curries etc over the next few days
ditto sausages - sausage pasta, sausage fried rice, sausage salad
turkey mince is cheap and great to stirfry - especially with Thai type food.
if you are close to a Morrisons or a fishmonger go and have a look at their fish counter, things like fresh sardines etc can be really really cheap.
carbonara made properly with an egg yolk. Save the white to mix with another 2 eggs and some cheese for a small omelette the next day
get plenty of dark green veg into you, spinach and chickpea curries (with some turkey mince perhaps) chicken legs with spinach salad and boiled egg.
Jacket potatoes with sausage and beans
batch cook chilli and again have with rice / jacket potatoes - freeze portions in plastic freezer bags.
stock up on yellow stickers when you see them.