Just letting all the many MNers that have faced the SEN 'journey' for decades and still face it:
My ds23 who started to be excluded from education aged 6 by a very immature HT consumed by disbelief that DS was autistic. And etc - involving huge upheavals but always maintaining the correct 'heading'/move to see DS ok.
And he's been ok ever since, but now he's launching into what he wants to do and ready to do so.
Studying History at University. Never give up.