What do I suggest you do:
1) Start creating your own food supply either buying local/grocery and preserving for when food is out of season and more costly.
2) Start growing your own food whether it is sprouts in your kitchen, a tomato plant on your window ledge or a full scale garden.
3) Start building your 'cook from scratch' easy food recipes to eat or freeze for later giving you more control over your food.
4) Consider starting a pantry like they did in the old days when going to the grocery store wasn't an option or weather prevented them from going out.
It is February and I'm eating swiss chard, spinach, kale, lettuce growing on my window sills...the tomatoes and peppers are blooming. It can be done and doesn't take much effort but the results are awesome....and I'm not travelling out of my house to get the food!
Start with small steps and build on it - save your grocery bill costs, eat healthy and create your own sustainable table.