I think what makes this attractive is that it expresses a feeling everyone has, but which never feels like something so common. I would like a better sense of emotion in this poem. It is a lament, so it seems it should be sad, but it doesn’t feel all that sad when I read it. It also seems to have no extension backwards or forwards in time - it is a captured moment. Though it could cover a lot of time, nothing changes during the time it covers.
Some mistakes can’t be forgotten and they torture us whenever we’re not preoccupied. Details or hints about them would help add variety to this poem.