Feeling nervous before a race is normal, but managing it can boost your focus...

https://www.bookmark-fuel.win/racing-nerves-can-trip-up-even-the-best-drivers-but-staying-calm-is-key-try

Feeling nervous before a race is normal, but managing it can boost your focus on track. Try this breathing trick: breathe in for a count of four, then out slowly for six to eight