Hi Mav, after reading your posts and seeing how stuck you are, I thought you might benefit from a book I have read. I may have posted about it before on my journal page. It is called “a spiritual renegades guide to the good life” by Lama Marut. It has helped me get unstuck from my regret and remorse.
The book has a lot of great points, but something that has stuck with me is that we can only achieve true happiness when we make it our goal to make those around us happy. It is amazing how when I started doing things purposely to help my wife and kids, and others in my relationship circles, I dwelled on my regret much less than before because I didn’t have the time to! This has a double effect, because the people around you will respond with smiles and appreciation, positive feedback! It also is a way to make amends.
I hope you try the book, and I hope you can move forward soon.