Third time around in therapy (last year), I decided to be very open about my mental health, and the steps I was taking to help myself. So my emails became 'I can't do that then, I'm in therapy.'.
I found personally, that being honest and open to everyone about my problems actually contributed in a small way to my recovery effort. Even now, stabilised and medicated, I'm still honest and open about my [ongoing] journey, and who I was as person then, and who I am now.
I am never going to lie about being crazy again, it's not healthy.
I could be way off the mark of course. I intend no disrespect or ill-will of any kind. I understand if you just say "None of your business" or something like that.
'Crazy' is how I view myself. It helps me accept my broken brain, and more importantly, makes it easier to stay on the meds. Without the meds, I'm into serious depression and anxiety territory. It's no fun being there, so better to call myself Crazy. It is what it is. Also, I use self depreciating humour as defence mechanism. People I know personally don't like it when I call myself Crazy though, not sure why.
One day I do intend to get an 'I AM crazy, the doctor had me tested.' t-shirt. (see what I did there?)
And if I had a friend who defined themselves as crazy that would honestly strike me as obnoxious. (I'd give a pass for schizophrenia or the like. Then your brain truly would be broken).
I say this having struggled in my own way (as, many, many - probably the majority - of people do at some point) with forms of anxiety and depression.
Everybody is trying to focus.
Everybody is trying to be happy and stable.
Everybody is trying to get by.
My point is that anyone can be "broken"... Not just people with schizophrenia. And sometimes, for both schizophrenia and other conditions, accepting that you're somewhat broken in a way can be very helpful. It allows you to accept help more easily and relieve yourself of personal blame for the ways you may have acted or continue to act due to the condition.
Source: I have a schizophrenia-spectrum disorder.