Honestly, I don't understand why you don't just quit. It's obvious that this job is making you miserable.

I would try to find another job even if it pays less or even get on disability because even if you must downsize your living expenses, it is better than dealing with so much needless stress and unhappiness.

You don't owe them ****. Your life and your well being are more important than their stupid deadlines and their own personal problems. I would submit your two week notice and run away from them and never look back.

Personally, I would sooner be homeless before working for people like that but that's just me.