TG, don't look back with disappointment. You did the best you could with what you had at the time. There is no shame in that. You have learned and grown and become stronger and wiser than you were before. That is a cause for celebration. You did well.
((((hugs))))
Congrats to your daughter. She is now starting a new adventure.
And thank you for sharing your story. I truly understand how you feel as I'm going through the divorce thing as well. I just look at it this way. My real wife crawled into a vodka bottle about 15 years ago and drowned. The person who came out was not her no matter how much they looked alike.
Your friend,
Mike