It's hard but you are in a position where you either have to learn how or you need to find someone who can be assertive for you. Honestly though calling the hotlines again and telling them you are desperate, having psychotics symptoms and (this is a REALLY good phrase) you have suicidal thoughts (plans?) and are afraid you will act impulsively if you are left alone. That doesn't even take being particularly assertive on the call line.

I have a feeling you are still pretty young and new to this (yes?no?) and this stuff does get easier with time. But there is nothing wrong with standing up for what you need. It took me a long, long time to learn that but it's a really important skill when you have something like bipolar.

The other thing that helps me is "I statements". "I am experiencing_____. I am afraid. I think I am at risk for suicide." (if they say call again, then you say "I really think I need help now. I am in danger". And then you keep repeating "I feel or I think" with facts to back up your statements until they listen.

Do you have friends or family who can help? Even having them call 911 and say they are worried you are dangerously suicidal and suffering from psychotic symptoms might get you help you aren't getting now.

But the biggest thing is to get to that therapy appointment tomorrow. And then be very, very honest. Print out what you've written here. I went through 3 years of therapy in college and couldn't talk to my therapist so I wrote things down, he read them and only then could I talk about it. There's nothing wrong with doing it that way.