Alter Egos

The whole time I was on holiday, I had the feeling that I was doing that sliding doors thing with myself. There was this girl at Sydney air port, long blond hair dark rimmed glasses. It was all I could do not to go up to her and say "I'm you in thirty years time". Then there was this woman about my age with the glasses and a camera on the Bourke Street Mall. I couldn't resist, I said "you're me in about ten minutes time". She laughed, bless her. Hannah Gadsby looks a bit like I did at her age (scary and with glasses) but she won Raw Comedy and I did it five times without success. Where did I go wrong?