Welcome to Psych Central.

I'm really sorry to hear you were attacked at work. talk about unsettling.

This is something I'm not even remotely an expert on, but I have experienced shocking and unexpected painful things before at the hands of others, and I can relate in that way. I don't know the answer to your q in #2. For #1, it makes sense to me that you would feel anger and depression and a number of different negative emotions after something like this, especially if it was a surprise, a shock.

While I haven't read or heard what you had said about anger, here's what I would do if it were me: 1.) this happened yesterday. Give yourself time. Time to settle, time to process. Also, what do you mean by saying you have anger at yourself for not letting this go? Are you trying not to think about it but "can't help it"? This happened yesterday. I'd still be thinking about it too. 2.) Could you maybe distract yourself with something you enjoy? 3.) If you are beating yourself up, try to be nice to yourself too. Remember that you did the best you could in the moment with what you had.