My play Safe Sex was picked apart because critics thought it was untrue. It was a play in which no one had AIDS, but the characters talked about how it was going to change their lives.
Educate yourself. Understand what you're dealing with. Then figure out how to fight it. Then figure out how to raise money for that fight. It'll help you cope. It'll help your child.
I don't believe you have to have eating disorders and mental illness to screw up.