There was a time when I would've looked into it, but I've learned that this is part of what makes me who I am. Not that it isn't tempting to hope for a cure.
My only family is a son who's safer without me in his life. My friends are mostly dead in the future, and the ones who aren't -- they should understand by now that killing me is a small price to pay if it means saving innocent lives.
Sounds like your mother raised you well. We've all done bad things in the past, but what's important is that you're making better choices now. It's too bad there aren't more vampires with your attitude out there. Or maybe in your world there are, I don't know.