Preparing for my country at war

Some best described as a delirious carrot with a wig is currently threatening to take land from a country that is stong allies with the country I am from.

How do I prepare for this?

I mean, I have water for a few days, I have a radio, some food and a blanket.

But where do I leave my savings? This war is going to crash the economy.

I think I have items to survive one week, but what will I need for the longer term? I think there will be problems with oil and gas, so little driving and heating and electricity, how can I cope for years on end in my small apartment?

If we actually do get invaded ourselves at some point, how and where do I join the resistance?

What documents should I burn, which ones should I keep in a safe location?

I expect a big part of the war to be about cyberattacks, how do I prepare for those? Do I remove my pressence from the internet? What are good ways to find real information?

Anything else I am missing?