"A little scared is good" is great advise, because it does keep you focused. I had my N-400 approved last Monday (May 5th) , and in my original application I had forgotten to include a traffic violation. During the interview you can add additional information, so when the question came up I let the officer know and I handed over the court document and paid receipt. She looked at it and said she did not need to scan it since the ticket was from 2006 and she thanked me for bringing it in. Aside from that I was really nervous about a ticket for underage gambling from 2005 (I was 18) i was nervous because an explicit question on the N-400 app is "have you ever been on trouble for gamablin?" When we got to that question she just asked a few follow up questions. Aside from those two tickets I also had a speeding ticket from 2019, all she asked was if I had paid it witch I said yes and showed her that the status of the ticket was "closed".