Someone once told me that it is wery easy for you to remember these instances and think at how you made a fool for yourself or how you were wrong or maybe even bad towards someone. These things are still vivid after 10-20 years.
However remembering how others were towards you fades a lot easier, to the point that remembering such instances from others against you from 5 years ago is difficult.
It sometimes helps me thinking that others likely moved on and probably do not even remember the episode, so I should let it go.
Good luck with that. Where I live carriers allow you to relocate your landline number to a new address when you move out nowadays, so this might be an issue to keep up to date.