SP, I am glad that you are in a place where you are safe. I was in a homeless shelter for a good while, so I can identify with the silly rules bit. Good for you for exercising self-control over your communication there, at least so far.
Feeling divorced (dissociated) from reality and the symptoms you are experiencing with that still suggest that you should be seen by a medical professional, please don't discount that option.
If there are cost-free options for anger management and to learn techniques like cognitive behavioral therapy to address your anxiety, do you feel like that would be helpful? It might be a few hours a week out of your time to participate in such groups or individual therapy settings to help you get a handle on your feelings. You don't want to blow up on somebody, and unchecked anxiety is very hard to deal with, I know.
Keep working toward positive goals and use Sober Recovery to help keep your thoughts on what can become different.