Hopefully, by this point, you've identified your key objectives. What trouble you can most likely expect and your best options to deal with it... even if only vaguely. Keep working on it. Refine & Rethink constantly, but while you do that let's talk... water. If you're thinking about short term survival issues, storing water is generally no big deal. The basic rule of thumb is 1 gallon/person/day, but keep in mind you might have a lot of add water foods.... and bathing or washing dishes. **Don't forget your pets.** It might be more realistic to consider 2 or 3 gallons per day. You can buy various kinds of bottled, canned, or bagged water. You can "can" your own water in mason jars. You can fill soda and Gatorade-type bottles. You can buy big reusable water jugs (they usually store 5 or 7 gallons). You can get the big bathtub water bags and hope you have time to fill it before disaster strikes. You can get barrels or big water tanks. There are many, man...
Getting started, building, becoming a pro.