Keep promises small enough to keep. Overcommitting is the slowest way to lose your credibility.

People judge you on the ratio between what you say and what arrives, not on the size of what you offered. Promising a lot feels generous in the moment and then quietly converts into a series of small failures, none of them dramatic, all of them noticed. Credibility does not collapse so much as drain.

Before you agree to something, cut it to the version you would still manage on a bad week. Say that instead. Under-promising and then doing a bit extra builds the same goodwill as a big offer, and it survives contact with your actual schedule.