Learn to let things go. If something goes wrong or you get blamed or, or, or, you cannot keep flogging yourself. Take copious notes, put procedures in place to avoid it in the future, then let go op it. When others keep reminding you about it, smile professionally and change the subject. It will take effort and time, but it is an useful skill. How you achieve it varies from person to person. Meditation, cognitive/behavioural techniques and physical exercise are all possible options. It will take time and discipline, but it is a learnable skill.