Should I appeal?

I got a ticket a month ago. For 18 over the speed limit which was marked as max speed(??) and no seatbelt. The cop was a jerk didn’t even let me say a word. I pleaded not guilty cause I did not want points on my license. The dumb magistrate. Sent my court letter to my old address and I missed my date so I was considered guilty and got 4 points on my license plus lost $230 dollars. I can appeal it at the court house which would be $45 plus court fees if I am found guilty. I really don’t want the points cause my insurance will go up. What should I do? Just deal with it or appeal?