How do you explain to yourself why you're you?

I guess I’m talking about what consciousness is a little bit, but not entirely.

More like, why are we conscious as who we are, not the person next to us? Or not conscious at all?

Why’d I get such a comfy life while others suffer?
Why’d I get such a reasonable, practical life when I want to do somewhat-crazy, passionate things?

But more than that, why’d I get a life? How am I me?
Why’d you get a life? How are you you?

Why we’re here, right now. Not past, not future, not born a year later or a year earlier.

How’d we all get so lucky or unlucky or both to be here, and be here now? Why now? Why us? As us?

How do you explain yourself to yourself?