My advice to folks going through the California and western US wildfires is to look at the advice given to Australians.
Make your plan.
Know your plan.
Follow your plan.
No two plans are the same but they have similarities. Know your trigger points. If the fire or conditions reach a trigger point, activate that part of the plan. It may be to grab the pets and photos and get out (although you should have trigger points and actions well before this). Know where you're going to go. Know your escape routes and if there's only one, change your trigger points accordingly. Know what you will leave behind and then put it out of your mind so that you aren't debating yourself at the last moment. Everybody in the household needs to know the plan so that they aren't running around like chooks when it's time to implement. If it's too late to leave, know the safest places on your property and get to them.
If you're going to defend, check your equipment and make sure it isn't exposed to ember attack (hoses, pumps, etc.).
There's a *lot* more to it, but this is to get you thinking and hopefully save some lives. The terror comes with the territory, and the plan is about being able to stop thinking and freaking out and just systematically do what you have to do because you've already rehearsed it over and over.
Don't expect any government agency or service to offer or provide help or assistance. They will be busy following their own plan. Don't expect evacuation points to be available. They could be at even higher risk and evacuated, so have a plan B. And a plan C and so on...
Know what to do if you lose communications and/or power and/or water pressure.
Good luck. See you on the other side.