Okay .... first off, you don't have to get used to crashing. Unless you are a real risk taker, you shouldn't crash ... that would be like telling kids to expect to fall down a lot while walking. Once you master the basic skill ....

Sometimes, drivers, other riders, animals, or road hazards will catch you off guard ... sometimes a mechanical failure might bring you down. These are rare and most risk can be minimized.

Mirrors are a good thing, but not necessary. I commuted in a busy city for many, many years without mirrors or daytime lights.

Mounting cameras .... meh. If I think I am at such risk that ti makes sense to capture accident footage for insurance purposes, I don't want to ride there.

Radar ... some people swear by it, others .... whatever. it might be helpful or it might be a distraction. it is certainly not a necessity, else everyone who rode bikes before it was invented would have died in accidents.

The only real survival tool is awareness. As you know from experience, you can be 100 percent aware, swivel necked, seeing and hearing everything, and still get hit ... but completely random and unforeseeable stuff happens very rarely.

And you know, you could have six lights, six mirrors, six radar units, and if a driver coming up from behind you drops his phone and decided to reach for it .... but by the same token you are vastly more likely to get hurt in a car accident (in a car) and even more likely to get hurt in a slip-and-fall in your bathroom. What are you going to do? I wore my radar in the shower but it shorted out.