First and foremost, make sure you know how to hunt and gather. If you can find food and water, you'll be able to survive for quite some time. And if you can't, don't worry- there are many other ways to get by. Secondly, make sure you have a sturdy shelter. You'll need somewhere to hide from the weather and to stay warm during colder months. Try to find a place that is well-hidden, but also easy to access. And lastly, be prepared for anything. If something...