It's all ok.
The email to T. What made you wish you hadn't sent it? Because maybe, once you are able to work through the shock and worry of it being sent, it might actually be a really positive and healing experience? Your T will have some information that I am assuming you are now regretting you shared, but night be important?
Would you want to send a other email explaining your feeling about accidentally sending it and whether or not you want to talk about the content right now?
And exploring with your T how you feel about what happened with that child might also help?
There honestly is nothing wrong with you.
You are not a bad person.
You experienced trauma. And all these feelings are the response and impact of trauma.
It's so intense, overwhelming, all consuming. There is a way through.
It does get easier.