i am being bullied on my job by supervisors. my health is being affected and my mental state. what can i do. i need my job.

You need to speak to an attorney.  Potentially, you may have a claim for intentional infliction of emotional distress, or perhaps for discrimination depending on why the supervisors are picking on you.  You should also make a written complaint to HR about what has gone on.  But you should see the attorney first.