You can rehash the chain of events all you want, but it isn't going to change the bottom line: you have been referred for disciplinary reasons and you need to start handling this situation effectively.

Here is what they would probably like to see from you:

1. An apology for your behavior and a plan on how to handle such issues in the future in a respectful way.

2. No "excuses" for handling things badly. We have to learn to deal with stressors, even and especially if we have mental health issues.

3. No more complaining about what professors you have. You are in a graduate program. You really don't get to pick and choose (usually there aren't many options anyway). You are going to have to learn to deal with people you may not get along with or like. That's part of being in school; that's part of being a therapist; that's part of life.