Words you didn’t say get heavier every year. Words you said badly can at least be fixed.
GRATITUDE
GRATITUDE
Something said clumsily can be revisited. You can go back, explain what you meant, apologize for the tone, and the whole thing stays alive and fixable. The things never said have no handle on them, so they just sit there and grow. That is why people carry the unsaid version far longer than the awkward one.
If there is a sentence you have been holding, it probably does not need to come out perfectly. Say the rough version to the person it belongs to and let them help you finish it.
What have you left unsaid that keeps getting harder?
Free, with nothing to buy inside it.