You have the energy you need to make a fresh start with someone you've argued with. You can make a fresh start with someone you've been arguing with today -- all you have to do is put in all the work required. You also have to humble yourself and admit where you went wrong. Start this conversation as early in the day as possible, and try to ensure that it takes place face to face. Meeting for coffee in the morning would be perfect. You have the energy for this task, and you certainly have the desire to help bring all this emotional intensity and upheaval to an end.