so if I understand you correctly?
you want to go back to 19 years ago? And attempt to sue the person that hit you in a car when you were 8?
Do you even know who this person is?
Do you have information from your mom as to what she really and actually agreed to?
I hope you are ok, and I'm very very sorry. However, I think you have a better chance buying a lottery ticket this afternoon than being successful at this.
I am no lawyer, and I could certainly be wrong. But you want to walk back 19 years ago? Where were you when you turned 18 years old? 21? Now we are at 27 and you want to find this person who I doubt you even know who and pin this on them? There's very little chance.
However, stranger things have happened. Perhaps you can. But you need to stop posting here and pony up your bucks and talk to a lawyer. It's a solid maybe. But I really doubt it.
Let me know. I'd be interesting if I can dig back into my past and get people to pay me.