When I lived in Canada, I stocked my home with “weapons of opportunity.” Things that were just part of the decor or household items that, in the event of a home invasion or something, I could grab and defend myself and my family.
Decorative knives and swords displayed on the walls
Wasp spray
Bear spray
An antique longbow with arrows
Baseball bat (stored with a glove and ball, of course)
When you live in a place where things are restricted or difficult to acquire, you have to be really creative. There are many things you can use for a weapon in an emergency. You want to have a way to bludgeon an intruder, a way to blind them so you can get away, or a way to make holes in them. The rest is just details.
Look also for self-defense classes. I prefer Krav Maga, but anything that gets you moving and accustomed to using your body as a weapon. I hope this helps!