The nuts and bolts of "how to" make an emergency plan is outlined on the Government of Canada preparedness site.
Rather than reinvent one of the many step-by-step plans, I would suggest that you take the time to browse this document. It should take you about 20 minutes.
Okay, you've just made your emergency plan. Well guess what...making a plan and seeing it through to fruition are two different things.
Did you ever wonder why some people die 20 feet from the road, but others survive for weeks on one peanut butter sandwich? To illustrate the point: about a month ago, an 80+ year old Inuit grandfather was lost while caribou hunting. They found his snowmobile stuck but he was miles away at the mouth of the nearest river. He survived over a week on 6 fish and 2 birds. Why did he survive in such an extreme environment? He didn't have the gold-plated emergency pack that you and I would have depended on. Equipment and a plan set the base for any Prepper. But experience and character allow you to be successful.
All survivors have the following mental states in common:
1) They Don't Panic: Just like in the "Hitchhikers Guide to the Galaxy". When you panic, you get stupid...and stupid people die (How to Survive (Almost) Anything: 14 Survival Skills by Laurence Gonzales). You have a plan... stay calm!
2) They Are Confident: Confidence comes from trust in your plan and familiarity with your equipment. An emergency is not the time to assemble your gas heater in the dark. Testing each step of your plan before the emergency, eliminates self-doubt.
3) They Are Optimistic: This is a belief that things are going to get better tempered with the ability to recognize that right now, things are not all right and extreme steps are required.
4) They Are Able to Assess the Risk: Is it worth walking to the gas station, if it means leaving your dependants alone? Should you let the stranger wearing the hockey mask in to share your food? Someone prepared and with a plan does not have to take chances. Avoid risk.
5) They Help When They Can: Being selfless inspires others, makes you stronger, and gives you purpose in bad situations.
Make your plan, test your plan often and plan to survive!