What Is Actually in Your Control?
You can speak truthfully and still be disbelieved. You can prepare for an interview and still be rejected. Your part in an action and its eventual result are different things.
Epictetus begins with this distinction. Our judgments, desires, aversions, and choices belong to us. Our bodies, possessions, reputations, and positions are subject to circumstances beyond our command. The distinction concerns what is genuinely our own doing. It does not measure how much influence we might have over an event. Enchiridion 1
This matters because we often hold ourselves responsible for more than our part.
Suppose you need to tell someone that you made a mistake. You consider the facts, decide to be honest, and explain what happened. You also want the person to understand, forgive you, and continue thinking well of you.
Those are several different aims. Their forgiveness requires their judgment. You can give them reasons, answer their questions, and attempt to repair the damage. You cannot make their agreement part of your own decision.
Epictetus places particular importance on prohairesis: our capacity for deliberative moral choice. Its work includes examining impressions and judging how to act. Having this capacity does not make every judgment correct. It gives us something to educate. We can become less hasty, more truthful, and more careful about what we treat as good or bad. Discourses 1.1
Applied to the conversation, the question is whether you are willing to be honest even when honesty does not purchase the response you want.
You might discover that you are preparing an apology mainly to recover someone’s approval. That discovery gives you something specific to examine. What do you owe them? What can you repair? What would an honest account include if you stopped trying to arrange how they would feel about you?
The same examination applies to work, money, and disagreements. Name what you are trying to secure. Then distinguish your judgment and intention from the result you hope will follow.