Find a bunker, stay there, learn to fight (MMA preferrably - aint nobody got time for kungfu meditations), Learn to start a fire using flints, learn to hunt and fish, learn to make shelter in the wild, learn to fashion out wild arrows, become your personal Green Arrow. Thank me later!
I'm sure that in case of war, your advice will not help. To verify this you can go to North Korea. You still have time, but you need to hurry. It is impossible to be prepared for any eventuality. Even in peacetime, your plans can be impossible if you just not in the morning, started the car, and you want to be ready for war.