Klay,
Don't worry...just use your mirrors and give 'point-bys' to the faster cars so they can get around you.
- You may also want to buy a larger clip on mirror for your dash and secure it with zip ties so it doesn't blow off. Better to see the traffic. This is a very important point.
- Do not drive beyond your means. Leave your testosterone at home. listen to the car, the track and the insructor. In that order!
Get an instructor or do a 'lead-follow' with someone that knows the line.
Best of luck and welcome to the 'Dark Side'!!!!!!!