At an early school, when I was about 5, they asked what we wanted to be when we grew up. Everyone said silly things, and I said I wanted to be an actress. So that was what I wanted to be, but what I was, of course, was a writer.
I just live and let live and live my life pretty much according to the Golden Rule. And it turns out well for me.
I really don't think life is about the I-could-have-beens. Life is only about the I-tried-to-do. I don't mind the failure but I can't imagine that I'd forgive myself if I didn't try.