Your story moved me along with all of Klal Yisrael. I did some soul searching and recalled a specific individual who I was insensitive to as a young child and then again as a young adult in two completely separate incidents. I tracked him down after some online research and after re-connecting asked him Mechilah. He didn’t recall the incidents but was so taken aback at the gesture and gave me multiple Berachos which I reciprocated.