Replying to Should I Plead Innocent?

So I was stopped behind a girl in front of the school. My friend pointed out a large amount of police cars and it distracted me. I looked left and accidently let my foot off of the brake. I was in neutral and the road sits on a shallow hill. I rolled very slowly (2-3 mph) into the car in front of me. I got a $90 ticket for "following too closely." As the car in front of me was parked/stopped, I was not "fallowing" so to speak. Should I go to court on the 18th to fight the ticket?
Also, I am 15 and have had no tickets or accidents until now. As I am 15, I cannot afford this ticket and the rise in my insurance. I am paying for the very minimal damage done to the car I rolled into out of my pocket to avoid an insurance claim. If I get the ticket voided, I pay nothing. If I lose the court hearing, I pay the ticket+court fees. What should I do? Will it being Christmas time help my chances?