Probably just try to disappear suddenly and people will just assume you died somehow. You’d have to cut-off contact with absolutely everybody. Go to a foreign country, probably third-world, where things are a bit more lax in terms of tracking people, and just start a new life there. You could try to do it in America, but it’s much harder to accomplish with licenses and social security numbers and all that required to do anything. It’s hard for a person to truly disappear innAmerica. Learning another language would be almost certainly required, though Spanish or French might get you by depending on where you went. Even English might be good enough if you went to a country with some tourism business, you might even be able to make it as a tour guide or something.