If time could go backwards I would change a whole lot
the misery experienced and the Untied knots
Things would be different but better, you'll agree
because I would know what would hurt and benefit me.

Times are hard and will only get harder
life is short and will only get shorter
so I must correct my mistakes and just stop accepting this sorrow
because I know I have fewer todays than I have tomorrows.

Did you mean to say stop accepting this sorrow or start accepting this sorrow?
I think either way works but for me I would have to start accepting.

I like the poem a lot. It would make a good song.