No matter how much street racing or stoplight racing you do, people always feel nervous their first time at the track. I know I did. You know everyone is watching you and if you screw up, they'll know. It will definitely get better with experience and getting used to being at the track. I ran a 10.4@67 with a short ram, blown struts, bald tires, and a slipping clutch. My average run for that day was a 10.6 though. That was about a year and a half ago. I have so many little things I need to fix on my car so I can see what it will do now. Keep it up, and I see better than a 15.7 run in your future.

EDIT: I just realized this wasn't your first time at a track since you had 1/8th times before. But being at a different track can be a little intimidating as well.

Lets just say this... I'm over 100whp and soon to cross 200whp. Thanx 2GNT! Now if I could only learn to prove it.