Much of what you say is based on your own wishes rather than scientific experimentation.
Well that sounds like psychological projection. Where did i wished something? You are The one wishing for eternal life
That being said, since it's very difficult to scrutinize the unscrutable, there isn't very much factual info, yet... except for the very fact of personal identity.
Personal identity isn't proof for anything other then feeling of personal identity. There's nothing magical about that.