I'd like to write about all the feelings that come with my specific intersex variation as like a vent zine, can I do that or do I have to write about a character?

the submission "assigned [] at birth," which was made by one of the judges, is entirely self-reflective and not centered around OCs. I don't see why not.

Official confirmation - this is absolutely wanted and more than alright. This falls under the "prominently focuses on intersex topics" criteria. We look forward to seeing your submission!