for one more day

I received the book "For One More Day" by Mitch Albom yesterday. I finished it today. It has left me feeling oddly reflective. Its hard to explain.
You can google it and see what the plot is about. In short, if you could have one more day with someone that has past on...
It goes through the whole spectrum of feelings and thoughts one has when presented with this scenario: guilt. memories. smells. tastes. attitudes. feelings. guilt. oh and did i mention guilt?
my mom died tragically and suddenly seven years ago. huge blow. large guilt. much anger. pissed off at god. I remember our last conversion, the last time I would ever see her alive...and it makes me sad. If I had known, like the poem says, it definitely would not have been "those words" i spoke, "those actions" i took. I would have made it mean more. If "for one more day" I would change a lot.
so I have taken this view and have tried to apply it to my relationships now, with family and friends and just folks I know.
Its hard. I don't feel like doing that all the time. If my spouse were to die before I get through typing this line.... the last words and actions we had were not what I wanted them to be. "for one more day" i would change it....
but its hard.
Life gets in the way, with its weird and demanding self. It is determined that I should bend and respond to its every whelm. Sometimes, it pisses me off as well.
i don't like things the way they are, and yet I feel powerless to change them.
for one more day. if only. in only we got redo's. the chance to say "I'm sorry".
I am trying my best not to need "for one more day". but i'm human. I'm a screw up.
I don't think its possible to get it right all the time and not have any regrets.