Talent ID camp tommorow night

Well tommorow I have a zone ID camp, if I do well I’ll be playing with the zone team at the zone championships. If i do great it’s possible I’d play with the team alberta prospect team. What is some key things to remember mentally so I don’t get nervous on the mound? this could probably be in the mental aspects of pitching forum but I guess I’m making it here. What are also some key things to remember to do that could be helpful?