get a piece of loose-leaf paper. not the new kind where all the colours look off and have "Hillroy" branded at the bottom of each page. find the old kind you had in high school where the lines were light blue instead of dark blue, and the column line was more pink than red.

now that you've got the right paper, at the top of the page, write down "my mistakes and regrets". now flip the page over. this is where you will show your work. draw a line down the middle. on the left, write down all the names of people you have loved. on the right, write down all the names of people who have loved you.

now cross off the names that appear on both lists. copy the names that remain to the front.

your list of mistakes and regrets is now complete. plus you have shown all your work.

***

alternatively, you can just do this.