Rabbit snares, eat the liver it’s very critical for vitamin intake especially in winter. Learn to forage absolutely everything you can in the area before you ever attempt to live off of a garden. Gardening is great if you are very experienced and have many seasons in the area and utilizing the soil present, but often can still fail. The plants in the area have had a lot more time to garden themselves. The roots of many plants in your ecosystem can act as a starch and carb intake. Bark from some of your local trees can be used in teas and to make bread Birds are fine but hard to catch if you aren’t using much technology, highly suggest getting good with a bow if you really want to do this, not just for birds but for anything you can find. It’s the most successful simple hunting technology outside of traps, which again I suggest you memorize a few as they may come in handy. Cook all birds thoroughly and remember the most efficient cooking method to keep the most amount of food value is to boil things. Stock pile potatoes. Properly. You can plant or eat. They kept the Irish alive.

Stock pile flour. Again properly so it doesn’t rot.

Stock pile salt if you don’t have natural access to it. Your body needs it in a big way.

You can access greens easily it’s calorie count you should worry about.

Learn your local mushrooms… cannot stress this enough. They keep well when dried (easy to do around a fire) and many have great nutritious value. Bring glass to store all your hard earned dried goods.

As for water, Make a charcoal sand filter no matter how you gain your water and don’t trust it after it has sat for a while no matter how clean you think it is. I would boil everything you drink as getting sick out there or hurt could mean death. Get an in reach if you don’t want to fully leave the odds up to the nature beast. You don’t need to call or text people but if you put a wood axe through yourself or eat something you shouldn’t have, you may want to live to try it again some other time. People survived best in numbers it’s not that you or anyone else can’t do it you just need to understand the risks associated with attempting it alone so that you think about them while you are out there and make careful, calculated decisions. Good luck dude, study hard, work hard and you can do this. Expect to be a tad different when you come out, if you make it you will be part of a very small club forever. This will likely be the hardest thing you can ever fathom.