Our daughter broke a small gadget while we were visiting at a friend’s house. As parents, we found out just as we were to leave. My wife then took our daughter back in to apologize. I am not wanting to flaunt our child training skills (we are just as terrible at it as you) but I want to bring out two positive things. First of all, our daughter was relieved and could rest with an easy conscience. Secondly, our friends respected the apology and respected what we were trying to teach our daughter which made it a very positive experience for her. May you try your best at whatever you are doing (child-training) and spend some time each day focusing on your good accomplishments instead of your failures. I also hope the people around you are understanding and supportive.