I think you need dramatic help, and now. I know this is coming from a stranger but I think it might be time to consider getting your mum into a permanent care facility. That could mean she gets the comprehensive care that her demanding condition requires. Dealing with Bipolar as well as the needs of a teenage daughter is a huge deal. Your mum may be happier in a care facility were people are trained to handle people with dementia. You and your daughter deserve to both feel safe and be safe and of course, sadly, your mum's condition can only deteriorate further.

Your mental health will be compromised all the time - not being able to get appointments with a psychiatrist to manage meds for your serious mental illness, as well as not getting therapy, will only get worse as you are slave to the demands of your mum's condition.

Making such huge changes requires help from a psych doc and T. You deserve help.

But before everything else, you need to risk manage your mum. You need immediate help to make sure she doesn't hurt you, your daughter or herself. I'm in Australia, so I don't know about what government systems you have, that you can call on. First-up though, is the police. They will be able to direct you to family services and they may be able to get your mum into a care facility ASAP. Open up that dialogue, and soon. You deserve help and you deserve not to have to handle all this by yourself, especially with your MI. Love to you.