Do try not to break it...
If I was you, I'd leave my lowers in the shed... No particular need to leave fragile expensive bits attached to it. Do you have crash bungs? That's good cheap insurance, meant I could ride home after a 70mph ****-up at Knockhill... And staying with the pessimistic approach, a spare pair of front levers is a nice thing to have. I've got a complete set of rashed up fairings which I fit, just because I'd feel like such a k*** if I didn't and I binned it.
Don't race yourself. That's what I did, it's obviously stupid but it's very easy to get carried away in the heat of the moment... And that's about it. Listen to the briefing, then get on with it
Don't get close to the other idiots, they're all paying £100 to go and ride their own expensive motorbikes around a racetrack designed for professionals- the fools! Anyone who'd do that sort of thing is obviously wrong in the head and should be given a wide berth