Does anyone else have issues “letting things go” even from when you were a child?

For example, when I was in 4th grade I had a teacher that was horrible specifically targeted me (to my 4th grade eyes. He was in fact just teaching. I know that now lol) However, I’m now 23 and occasionally I still think about that guy and hope he’s had the worst day possible 😅 i wonder if this is a thing that other people experience too?