Thoughts on doing spell work on people who wronged you from your past a long time ago?

Do you think it’s a waste of time and energy to do spell work (hexes, jinxes, even curses) on people from your past who wronged you, or someone you love, in the past? Perhaps even years ago? Why or why not?

Edit: thank you all for your kind words and suggestions. I appreciate all of the different viewpoints so much.