Run out of steam

So, never posted in a forum before. Thought this might be the best place to start. I've run out of steam, after 5 years  and 9 months since the official diagnosis of autism for my child, I have nothing left. I can't cope. There's no support from "professionals", they only offer platitudes. I was referred to behaviour support in August 2015, my appointment was in January, a phone call in May has lead to a follow up appointment in July 2016. More platitudes I suspect. I lost it yesterday, and not in a tidy way. I'm scaring my husband and don't know how much more I can do.  I'm hoping I'm maybe not on my own here?