Denied unemployment, how do I appeal?

I got a denial letter last week saying I left my job voluntarily, but I was let go as a retail manager. There are 12 people counting on me, so I am trying to be careful. I have not done a hearing before and I am nervous. Should I ask someone for free legal help?

Thanks for writing this out. I went through something close to it 13 months ago, and it got easier once I kept a simple log of every call and form.