Don't pack your fears with you. It can get heavy. 

List of fears:

Getting lost --- Tom Harrison Maps

Dehydration --- MSR Water Pump. Backup Tablets.

Heat exhaustion --- Hat. Swim.
Altitude Sickness  --- Diamox. Advil. Water. Breathe.

Forest Fires --- Nothing I can do

Starvation --- 30 lbs of food

Lack of water sources --- Nothing I can do

Wildlife --- Raise your hands up high. Make yourself look big.                Shout, "Get away".
Your mind under pressure --- Meditation. Mantra. I CAN do this. 

Lighting --- Hide under a group of small trees. Wait.

Lack of Food --- Hiker Barrell at Resupply Stations

Injury --- First Aid Kit. SPOT beacon locator.

Hypothermia --- Emergency Blanket. Tent. Layers.

Lack of nutrients --- Nunn tablets. Protein Powder. Eat!