Sorry to hear your story, and glad the damage was not worse.
Wary is good. I always try to expect the unexpected.
When riding, I look for what can possibly happen and try to make contingency plans accordingly. For example, if somebody is at the mouth of a side road I assume they will pull out, check my left mirror to see if there’s space to change lane position if necessary, maybe give a short beep on the horn to make sure the other vehicle is aware of me, be prepared to brake and try to be aware of what’s behind as well in case they plow into my rear end. Sounds complicated but it’s an almost automatic habit now.