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.