A psych ward? They allow you to use electronics and go on SS ? Maybe its not a psych ward? Why are you on SS in a psych ward? How is that even possible?
I remember my first hospitalization when I was 16-17. I was so upset that I wreaked havoc in my room on more than one occasion. I was amazed at their audacity and their conviction that placing me in confinement for a little bit is going to make all my problems go poof! Take away my freedom and tell me what to do? Yes, that'll do the trick for sure. Just take a little pill, eat a sandwich, write down your little problems, and pop pop bam bam...magic happens. Haha, I think not! And they treated me as mentally ill? Their whole belief system is a mental illness. Of course, they're just puppets abiding by what the boss says, and the boss acting in accordance to what the law says. How could the system for rehabilitation be so crappy? Well, as it turns out we're still in the primitive era when it comes to mental health.
Just lie man. That's your only key. If they still keep you in despite your cooperation, then you should get a lawyer or something. Or just slap em silly like I would ...I'd confront them in a frank manner. I'd ask them "Why are you keeping me in here when I said I'm doing just fine? What is your ultimate goal here, pal? Money from my insurance company? Please, I want answers and I want them now and I want them as clear as they come. Is that too much to ask?" Just be strict and assertive.