It is a little tricky to turn around lifelong habits, but it's worth it. You don't need to get fancy in the kitchen. Tesco (no, I don't work for them but there's a superstore a few minutes away

) have a range of chicken breasts in various sauces with very few carbs. Or buy a couple of chicken thighs or stewing steak and a Spice Tailor curry sauce. No nasty additives, a tiny bit of sugar in some but only about 12g of carbs a portion. Or just choose some meat and sling in a tin of tomatoes and some onion and chilli or some frozen cheapo veg and cook it up for a couple of hours. The toms and onion have some carbs but a small portion shouldn't rock your meter. Do check, though.
I've never eaten so well, and so cheaply.