Hi,
My 17 year old son's mental health broke down at the beginning of Y10 and, after many attempts at continuing school, he was admitted to a CAMHS unit. He has tried a special school with a post-16 section, but his anxiety was too high for that to continue, and later he tried a lower level course at college, but that also fell through. My eldest has a diagnosis of AS.
My youngest son began refusing school for a short time in Y7 and then persistently in Y9. He is now in Y11 and has had home tuition for the LA and is now attending the tuition at a local PRU. My youngest is almost certainly on the spectrum, but refuses formal assessment. he has a diagnosis of Generalised Anxiety Disorder.
In my experience, an Education Health and Care plan can help. It can assure that a multi-agency approach is upheld and that this involves health as well as education (and social care if necessary). However, our LA wanted to close my eldest's EHC plan as provisions broke down. If this is suggested do not let it happen. My eldest now is now working towards a Personalised Learning Pathway which will help him with many aspects of his life.
Now, this may seem controversial, however I feel it is important. I experienced mental ill health as a teenager and my secondary education was cut short. However, I returned to education some years later and achieved excellent qualifications via Access and university. My sister also returned to education via Access. In the case of both my sons, I feel the best thing that I can do to help them at the moment is to take the pressure of education (in the formal sense) off them and help them build up their self esteem through practical skills and the social elements of college or community life .
They are both highly intelligent, but highly sensitive boys who, once they have gained strategies to manage their extreme anxiety, will flourish in FE or HE.
Furthermore, I ended up teaching in FE and HE and have known many individuals with AS and/or mental ill health achieve excellent results as young adults.
However, I do realise how impossible it is to function when you have an avoidant and/or highly anxious young person at home all day. CAMHS tend to be vastly under-resourced and social care may not understand the complexity of the situation, however, they may be able to contact specialised careers services and help your son to think about some vocational options.
I apologise for the ramble.