Shaky hands can still sign the form, hold the mic and press send.

Waiting for your body to be calm before you act puts the wrong thing in charge. Adrenaline does not ask permission and it does not always leave when the moment calls for steadiness, and it turns out hands can shake and still do everything they need to do. The tremor is not a veto.

Act while the feeling is present rather than after it passes. Sign it shaking, speak with your voice a little unsteady, press send with your heart going. Almost nobody watching can tell, and the ones who can have been there themselves.