Feeling jittery before a race? Managing nerves is part of every driver’s craft....
https://felixsnewword.hexaforgey.com/posts/how-to-use-breathing-to-shift-your-nervous-system-quickly
Feeling jittery before a race? Managing nerves is part of every driver’s craft. One simple trick is controlling your breath: breathe in for four counts, then out slowly for six to eight