I would watch the pressure thing, I have known different car's react differently. I generally start on stock pressure's for a while and take it from there.
There are many things I have learnt over the years from my amateur track day experience, but the one thing that took me the longest to pick un and get right is being smooth. Try not to use the lower gears, I don’t know the track, but you will be tempted to drive it to the ragged edge. Try and be mechanically sympathetic, stay calm and learn track etiquette and stick to it. If someone catches you up, irrespective of what car it is, let it pass. Take it easy, listen to what you are told by the briefing staff and enjoy.
My first track day was 10 years ago at Silverstone [UK] in a modified Peugeot 306 D-Turbo and I was hopeless, in fact I am surprised I managed to live through it! I drove it like I stole it, tyres screeching all over the place braking and turning in, in the wrong places etc etc........nightmare.
Check out these x2 vids. The first is Nigel Mansell doing his thing around the top gear track. He was very fast around the track, but make note of the lack of screaming tyre’s. It was a smooth lap. The second is also from top gear, James May being educated on how to drive a TVR by Jackie Stewart!
YouTube - Carareok Nigel MAnsel
YouTube - top gear james mays lesson