If you don't already have a gun, buy one. Get your whole family to buy one. Tell all your friends to move away. Your whole family must live in the same house, if not the same room. Keep the lights on at all times. Don't travel alone. If you live in a rural or wooded area, move to a city. Keep electronics nearby to know if he's coming. Put video cameras in and outside your house. Get a guard dog. If you do these, you have a higher chance of surviving! :D have a nice day.