"be prepared for anything mother nature may throw at you"
now that we have that out the way you have to decide now whether it is worth you carrying on reading this and the way you are going to decide is to ask yourself this.
"do you have the will to survive?"
if the answer is no. then clear off. if the answer is yes then congratulations, you have completed the first step of survival school. will power.
Step 1: The basics of survival!
Most valuable - before you trek anywhere unassisted check local knowledge. Find out about the basic geography of the area. Familiarize yourself with edible plants and animals and local seasonal dangers like floods and animal migrations.
Be prepared for the environment you're heading into - bring the right tools and supplies.
Use common sense. If you are lost, try to get your bearings before moving on. If you're tired, rest. If you're hungry, try to find food.
And always push yourself, the only way the people like bear grylls and ray mears survive is by pushing themselves beyond what the think they can do.