Sorry to hear about your accident. Hope you'll recover quickly and that the driver will be found.

I can deffinitely relate to what you're saying, although I made an even stupider mistake. I was hit by an SUV a few weeks ago. The typical driver makes a right turn - no signal - right in front of me. It's true that I should've considered that he might turn but I was tired that day and sleepy. Anyway, upon impact, I flew to the ground and the guy just rolled down his window and asked if I was ok. I was still trying to figure out if I was in one piece and trying to stand up and I said "yeah, I'm ok" because I didn't feel anything was wrong. Then he drove off. I though he'd park somewhere, but he actually left.

Now, if I had already had an "after accident protocol" in my head I would've yelled "we need to talk" or "stop" or "wait, I have to call the police" but I wasn't thinking about that at first. So I learned my lesson the hard way but a reminder is always useful.