I received a Wage garnishment in ny?

I just received a letter from a NY marshal regarding wage garnishment of a total of $5216.00 of which $ 3,200 is the real debt. It says that my employer has to garnish $217.00 every week to satisfy the judgement! I work part time and i only make $270.00 net a week. I also have to pay rent, utilities, and dependent care. I cant sleep! What do i do?