10 Years on Seroquel, how do I wean off?

[Cpromiset]

10+ years on Seroquel for sleep. That's roughly 3,650 pills and nights of restful sleep. Many say you can't get addicted to sleeping pills....but try saying that after 10 years and your body has no idea how to sleep without it. If I run out of pills or lose them....I lose my ever-loving mind. I cry, I panic, I don't sleep. I've tried a few times before and after so many days of not sleeping I can't control my outbursts. I was also given it because my doctor back then thought I might have bipolar disorder, which today no doctor agrees with. So I'm stuck. I try to call rehabs, but I'm not technically "abusing" anything so they don't take me.
I want to get off them because I'm 35 and want a child. I can not be on Seroquel while pregnant. My addiction to taking that pill and knowing I'll get to sleep no matter what...is my weakness. It makes me so weak that I'm actually considering not having kids just so that I can stay on the pills. I know that's something I'll regret later in life. Should I go off of it and just put myself in a psych ward? I can't afford private fancy rehabs and the public ones don't take sleeping pill addicts.
I have 4 step kids and a partner and I don't want them to be in my path of rage and depression while I'm trying to wean off of them. I want someone to take me seriously. I need help.