So what exactly do they (the HTT) want to do...?
 

I saw the HTT man today and he said that he is very concerned about me and that he is worried for my welfare. He also thinks that my medication is not working at all, and that I need to have a review of my treatment by the doctor.

What do you think the doctor could do... It sounds ominous. Like they're plotting something against me. He said that my meds are not working, so what other option do I have?

He told my Mum about my voices and the Devil.

I still have to maim someone. I'm going to explode.

Are there no other meds left for you to try? I very much doubt they are plotting against you, rather finding another way to try and help you.

A review simply means a consultant, usually, will evaluate your meds and offer alternatives, and also consider the emotional support you're getting, perhaps, and suggest alternatives that might help you cope better.
They're on your side.

I've been on risperidone, amisulpride, aripiprazole and olanzapine and they've all betrayed me in one way or another.
I don't want to go on the old antipsychotics (i.e. chlorpromazine, haloperidol) because the side-effects are nasty (parkinsonism, tardive dyskinesia).
Quietapine is just like olanzapine and I don't know of any other atypical antipsychotics.
I don't see any viable options except for them to give up on me or do something ghastly to me.
The logical part of my mind still tells me that they will help me, but my realistic part says "what the hell can they do? Not much, if anything."