I think it's okay to get mad at your T. Maybe it would be great to express that to her next time you see her.

Putting things in perspective, pointing out how she responded is a good start.

Remember, she is your T, under your employment. Personally, I think you made a great effort and should give yourself a big yahoo for being able to express your anger with your T!!!!!!!!!!!!

Good for you...keep going, don't give up. I'd also keep a journal. I have one just for my anger. It really helps clarify what makes me angry and gives it some closure.