I helped my nanny the first year. I was giving her a set amount of money, so we looked at the exchange and picked a plan. It turned out to not be exactly right for her, so we switched the next year, but all I could do was help her understand.
She had never had insurance before and didn't understand copays or deductibles ... I was very up front with her that I wasn't a pro, but that I would do my best to help.
Also, there may be people who can help. Go to the state exchange and see if there is a number to call for help selecting a plan.