I'm lost on whether I should use "a" or "an" in the part of the sentence: "an (among other things) schizophrenic". How does the part in the brackets affect the rest here?
Back in high school one helpful tip a teacher gave to me was if the following word starts with a vowel use 'an', otherwise use 'a'.
"He is a soldier, while she is an athlete."
The parenthesis act like commas, in which a subordinate clause is enclosed between them. You could phrase it that way but most people are used to something like:
"He is, among other things, a schizophrenic."
Both work similarly, in which if you remove the subordinate clause the sentence still makes sense:
"He is a schizophrenic."