Feeling nervous before a race is normal, but staying focused can make all the...

https://wiki-view.win/index.php/Breathing_Exercises_You_Can_Do_Without_Anyone_Noticing:_Quiet_Coping_for_Pre-Performance_Nerves

Feeling nervous before a race is normal, but staying focused can make all the difference. One helpful tip is to breathe deeply: count to four as you breathe in, then six to eight as you breathe out to calm your nerves