remove all expectations, go at a comfortable pace, and pick it up in small increments. if you've never driven on the track it's a pretty overwhelming experience at first. don't worry about line, apexes, whatever - just get used to the environment. leave the technical stuff for the many track days to come. if you're not scared stiff you'll learn that much quicker. nothing to prove, it's not a race - relax, have fun, and it will be an awesome day!