Cover letter question for a job in mental health (social work/psychiatry).

[Agent Foxtrot]

Hello, first-time poster here.

I am freshly graduated from my psychology program and enrolled in my graduate MSW program. I am applying for my first job in the field as a residential counselor for mentally ill adults. I don't have any job experience in this field yet, but I DO have a mentally ill father who for years has depended on me for help with multiple life maintenance tasks that parallel the new job requirements.

Should I mention in my cover letter that I am taking care of my sick dad and that it's given me years worth of similar experience? Or would that be TMI for an employer?

Thank you.

Edited May 30, 2016 by Agent Foxtrot