The very first thing I'd do is stock up on all the expensive alcohol I could carry from the corner liquor store. That would be at a premium and it's not something I want to spend a lot of time making myself.
I am fortunate that we have a barn full of camping equipment and a woodshed and wood lot full of fuel, and a woodstove, so I could cook and stay warm in sub-zero temps (yep, I've slept out in Maine in January). I'm near enough to a pond to get drinking water and have a near-infinite supply of iodide pills to clean it up prn, or I could boil it. I have lots of herbs (including digitalis) and wild plants here, too. I can fish and dig shellfish in walking distance, too. We have rabbits and wild turkeys here, and deer.
So my plan would be to return to the 17th century and live as my ancestors did twenty miles from here. I know how to butcher an animal and make soap with fat and lye from the wood ashes, save the fat for cooking and calories later, I can tan leather with the animal's brain and acorns. I could birth babies, stitch up wounds, and treat dropsy (that's the digitalis), set bones with bark plasters, treat fevers with willow, get vitamin C from pine needles to treat scurvy, and all sorts of things like that. We have a pretty good garden in the summer, and I know how to put up food without a modern kitchen and save seeds. We have apples, berries, grapes, dandelions, and more. If they didn't burn me at the stake as a witch I figure I could trade care services for food, too. I have hand tools and know how to use, sharpen, and maintain them.
The cats would have to catch their own food, but they're pretty good at that already.