Distressed screaming child for 3 hours

[EnglishRose1320]

This post is really just for me to vent. My ds has ASD, depression and anxiety. It took until nearly midday to get him out of bed and he has been screaming at me every since. He is refusing to leave the house or engage with any activity at home. He is either screaming/repeating the same phrase over and over again/banging his head or demanding that I make him a plan but the only plan he will accept is one where he is allowed to die.
I feel physically and emotionally totally drained and have no idea what to do.
Cahms are being useless and I feel so alone.

I didn't want to read and run
There are two threads I believe(support for parents/carers of anxious children and one for children with mental health?)and they both offer at least the comfort of not being alone.
Have you much RL support?

Thanks for replying stilllivinginazoo I'll have a look for those threads.
I have some support my partner/ds' dad tries his hardest to help but gets really frustrated by the lack of progress and then he gets down which doesn't help so I try not to tell him about the day to day.
My parents are great and give me breaks when they can.

I'm glad you have your parents support
Caring for children you need back up.its full in at the best of times