Denied unemployment, how do I appeal? - 8 months and counting

I got a denial letter last week saying I left my job voluntarily, but I was let go as a bookkeeper. There are 6 people counting on me, so I am trying to be careful. My employer's version of events does not match mine, and I have emails that show it.

I printed my emails in order and wrote a one-page timeline. The hearing officer kept going back to it.