Actually in the last point you can (atleast in my country) appeal to a board to reverse an involuntary hospitalization. They give you a lawyer and a rights advisor will explain it all to you and answer any questions. The board reviews your case and makes a decision as to whether your doctor was right or wrong in hospitalizing you.
You probably already know this but just incase someone doesnt
Louise, its very difficult for me to understand the pain you must be going through, but there is a way out. Dont give up just keep adjusting your meds and life and youll get closer. Thats the depression speaking. Honestly i felt suicidal a week ago because of the invega i was on. Now i feel great! 100 times better. Talk to your doctor about that med i mentioned to you