Racing nerves can throw off your focus when it matters most, but simple...

https://telegra.ph/Is-There-a-Quick-Routine-I-Can-Do-in-90-Seconds-Before-Performance-08-27

Racing nerves can throw off your focus when it matters most, but simple breathing helps calm the mind. Try a 4-count breath in, then 6 to 8 counts out to steady yourself before a lap