Welcome aBoard, Felix, and thanks for the info. Tell me, if you don't mind--do you realize immediately that if someone behind you calls out "Felix", they mean you? About how long did that take, to become natural for you? Is there anyone who still calls you by your former name, and do you still respond as easily to that?
I have to say, the idea of a whole new start is appealing. But I don't think I could ever stop thinking of (say I chose) Eve as me: I think I'd be thinking, "Who is this person?" Though perhaps age has something to do with it; perhaps I'd have had an easier time thinking of doing it in my 20's, whereas now I've been Jackie for five decades.