Ah, the first visit to Traffic Court. Being scared is normal
Something else that might help, in case you read this beforehand, is that the size of the city and county, and the morning's docket, can also have an effect on the hearing. As mentioned, something like this usually takes less than a minute, and as long as you're respectful and sincere, judges tend to be a little more lenient for a first offence -- especially one as minor as this.
However, if the population is large and/or the judge has to see a lot of people that day, it's usually easier and cheaper to just let cases like this go. Trust me, while you're waiting (unless you luck out and get to be heard first, and if so consider yourself VERY lucky!), you'll hear other cases that include things like speeding, running lights, driving with a DUI or suspension, and other more significant infractions, and it'll really put your own case into perspective. [edit] And absolutely what Grim said ^^
I'm not sure what the laws are in Colorado these days, especially since there's been a big crackdown on younger drivers (mainly due to texting), but driving alone with just a permit definitely isn't a serious offence. Honestly, if I were you I'd just expect a fine at the most, and maybe a stern look from the judge with a reminder to be more careful or something. Hopefully the fine won't be very much, and you can make payments.