I agree with 2quilt. Horrible what they did, and I am sure there is something you can do about it. Here in Canada we have labour laws. I think here it is under Human RIghts. Not sure where you are sending from.
As for the rest, take the med and get your sleep. Without sleep it is really hard to see things rationally. It doesnt mean you will be on it forever, just until you can find a better strategy.
Did your doc talk about depression or a therapist? A good therapist is worth his weight in gold, in my opinion. He can help with sleep, depression, and all those demons that torment you in your sleep. Its not easy or simple, and there will probably still be rough spots, but in my experience its a good place to start.
Stay strong!