Years ago, I betrayed the trust of a friend without realizing I had done it. He drifted away from me because of my betrayal and I drifted away from him because of silly things I was mad at him about. I only found out much later on that he felt betrayed. I didn’t speak to him for a number of years, but when I was going through my therapy for anxiety, I decided to get in contact with all of my old friends, and make amends where necessary. I called this old friend and he was very nice about it. He considered it old news and didn’t care about it anymore. We never ended up talking again, but he seemed sincere about his forgiveness and it certainly made me feel better.
I had an incident with a girl from college as well, who I contacted many years later to set things straight. And similarly, with another girl from high school as well (I only contacted her earlier this year).
For the most part, I would say that it might take me a few years, but if I can get in contact with people to make amends for my mistakes, I do. I don’t feel overwhelmingly guilty in every situation, but it does feel right to accept blame where I’ve been wrong.