If I had known then what I know now, as they say, I mean before I knew it, I would have known what to do and what not to have done. But I didn't know. How could I have known? I only knew what I knew and not a smidgeon more. I could not have known what I didn't know.
And even if I had known, how much would knowing matter? I mean, would I have known enough not to?
Maybe, if I had known myself, and if I myself had known, I wouldn't have. But I didn't know myself, and I certainly didn't know that I didn't know myself.
I'm not trying to fool myself here--just trying to figure things out.