As to the OP
What I do... I’m gardening.... a lot. I have a 20x30 green house and am learning how to garden year round.. Here that means in 3-6 feet of snow...
Go bags with at least 72 hours food... Unless your 50lbs or more overweight like me, I only need water and electrolyte
Take a survival course
Take a permaculture course
Get 2-3 year supply of food staples and seeds
Get farming supplies
Fert
Irrigation stuff
Actual greenhouse poly (super tough wears like iron)
Lots of compost
I like greenhouse supply and farm tech as suppliers
I use several sources for bulk food.... Here are 2...
Rainy day foods... In montpellier ID....They ship
https://rainydayfoods.com/
LDS food storage store... Open to non members. Look it up
Get a tent suitable for long term camping, preferably with a roof jack and a tent stove...
If possible get a small travel trailer
I have a freeze dryer, I use my freezer storage daily what doesn't get used after 3 months gets freeze dried.
All of this stuff is easy(maybe not the gardening there is a learning curve there, you might want to get ahead of it) and practical.
We drive less as there are fewer supply trips.
We have better nutrient density in our food.
We eat fewer processed foods
We have peace of mind.
Guys Europe is experiencing huge farm closures and crop failures are becoming the norm, experts are predicting world wide failures in the near future... This is real its not a zombie or meteor fairy tale, toilet paper will be the least of your worries if you don't have the grub to produce the poop...
Lastly if your one of the pious atheists (you know who you are) out there that thinks people of faith are idiots, do a better job of being tolerant....
You never know who's charity you'll be in the position to need.
Seriously though, good luck.