I got dismissed because of the stupidest thing.

“Humiliated” will not fly with the CB; CB simply will not care about your feelings. Your report does not in the least suggest that the proctor was out of line or abusive. You violated the rule, and your ignorance of that rule is not an excuse.

I’m sorry to be blunt and present an answer that you probably won’t welcome, but I’m being honest and trying to help you move on.