Too Long; Didn't Read
A single point of failure can cause a chain of bad reactions. A crack in the security wall can have a domino effect. Even in the worst of moments, keep your composure. Accept your mistakes, remediate them and learn from them. Never drop the weapons. As you say, be your best self-control. Acceptance is temporary, quitting lasts forever. You can recover from a cyber-attack but things will never be the same. You cannot control the next stage of the stage of an attack.