I am going to open up a big can of worms here and am Cretan most of you will have some thing to add, So here are some ideas to start you off
Virtually everyone will lose their way from time to time. What we call it is not important. What is important is that we must first accept the fact that we don't know where we are and approach the problem in a reasonable, rational and calm manner.
Stop Think Observe Plan
STOP - Take a deep breath, sit down if possible, calm yourself and recognize that whatever has happened to get you here is past and cannot be undone.
THINK - Your most important asset is your brain. Use it! Don't Panic! Think first. Move with deliberate care. Take no action, even a foot step, until you have thought it through.
OBSERVE - Take a look around you. Assess your situation and options. Take stock of your supplies, equipment, surroundings and the capabilities of fellow travelers
PLAN - Prioritize your immediate needs and develop a plan to systematically deal with the emergency. Make a plan. Follow your plan. Adjust your plan only as necessary to deal with changing circumstances.
1. Medical Care
2. Shelter & Fire
3. Signaling & Communication