upcoming race event

I registered for a 10K yesterday! I haven't participated in a running event in almost two full years. The last one I ran was a 4th of July half marathon in 2006 and it was a personal best with a pace of 8:43 minute miles. Running has been spotty due to life happenings and getting back into a rhythm has been difficult. Running hills all the time is difficult. I'm a little nervous about the 10K coming up!