Recently, I've noticed a concerning uptick in the number of students asking whether it's appropriate for them to write about mental health issues, most frequently ADD and/or anxiety, in their college applications. ... So the short answer: don't do it.
Is it OK to talk about depression in a college essay?
All counselors interviewed for this piece agreed that students' college essays should not be about their struggles with mental health. ... Vinik says that mental health problems should only be shared in the essay if the college would not be able to understand the applicant without knowing about this part of her. (https://www.noodle.com/articles/how-to-discuss-your-mental-health-on-college-applications)
Does mental illness affect college admissions?
Of those with a diagnosed mental illness who dropped out of college, 64% directly attribute this event to their condition/disorder. Only 36% of college students with a mental illness are sure that their university includes mental health information on their website. (https://www.collegetransitions.com/blog/tackling-depression-anxiety-on-your-college-application-and-beyond/ )