Your clear conscience

https://howtobeastoic.wordpress.com/2018/03/07/seneca-to-lucilius-courage-in-a-threatening-situation/

Your clear conscience gives reason to be confident; still, since many external factors have a bearing on the outcome, hope for the best but prepare yourself for the worst. Remember above all to get rid of the commotion. Observe what each thing has inside, and you will learn: there is nothing to fear in your affairs but fear itself.

~ Seneca

What — exactly, specifically — is under your control?