Indeed, drive to your abilities and then get to know your car. Let everything warm up, the most important component will be your tyres as they are the sole contact between the moving mass and the black stuff.
Make sure your car is in tip top condition and spanner check.
Remember it is not a race, so there are no prizes and don't feel obliged to keep up with everyone. Keep an eye on the quicker cars and remember the track day rules with regards overtaking and being overtaken.
It is an enjoyable experience no matter how many times you do it.
