Progress?

I went to see my psychiatrist yesterday. He was pleased with how I'm getting on,and wants to reduce or totally cut out Olanzapine (an antipsychotic). I'm not sleeping, which is not easy for me, but he's given me some diazepam, which I'm hoping will work The only reason I put a question mark in the title is that I feel like things only work for a month or two, and I can't cope with things falling apart again, I've had just about enough of being ill.