If I could give you one piece of advice it would be recognise the signs. Make sure that you can be prepared. I mean loot the supermarkets before everyone else gets a chance. You want to get in there and get the good stuff. Get to a hardware store, get a generator, get wood, get all you need to keep yourself warm and protected. Board up your windows, your doors any little nooks that they get a hand through. This will be your life now, you have to be prepared for the worst and you have to prepare yourself mentally for all you might have to do.
Sit and wait. Defend, don’t attack.
The dead outnumber the living.