Survive
Unless you are an experienced hunter, trapping and killing animals for food is not recommended. Avoid leaving food near your shelter at night as it may attract animals.
Avoid entering caves on your own, as they are dark, dangerous, and may be home to animals
At night, there is a greater risk of freezing to death. Stay dry. Bundle up. Get yourself off the ground. Make a "bed" of layers of branches, leaves, twigs, whatever is there, and cover yourself with the same things. To stay warm at night, you can heat rocks in the fire, bury them, and sleep on top of them, but this is a painstaking process; it’s easier to place yourself between the fire and a large reflective object such as a fallen log, a boulder, or your space blanket.
You can survive several weeks without food, but only few days without water, and, in poor weather conditions, perhaps only hours without shelter. Keep your priorities straight.
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