I can only say, learn how to fix things. Like, everything. Because everything is going to fail at some point, and that $4000 quote to fix it doesn’t look so good.

Rodents or possums in the ceiling, call the local pest expert for advice. They’ll usually give you that because they don’t want to come out and get in your roof stage themselves.

Snakes? Don’t go under the house in hot weather. Keep trimming the grass/weeds close the house especially if your kids play there.

Invasive root systems like white poplar near the house? Either have a professional kill and relive the tree, or did up the roots every time you see a shoot come up.

Generally look around the house. Think about how each thing could fail (gutters, roofing, stairs, electrical, plumbing, paint, windows). Think of worst case scenarios for those things and what you would do if that happened. Prepare for it whether that means having the number of someone who can do it, or how you can do some DIY repairs, even if it’s temporary.

Finally. Bush fire. Are you prepared? Do you have a plan? Do you have timeframes for doing your bush fire preparations every year? Talk to neighbours and find out their plan and see if something similar works for you. You can stay at home and fight fires, but the mental toll of doing that can be crippling and possibly never recover. My plan is for the family to leave immediately, and I gather all our important stuff and follow as soon as possible.