Greatness That Does Not Count Itself
The true mark of a tzaddik is that, however much he accomplishes, he remains small and humble in his own eyes.
The Torah calls Noach a righteous man in his generations, and Rashi records that some sages read this as praise and others as criticism. The Tiferes Shlomo asks the obvious question: he was a tzaddik regardless, so why diminish him? His answer is that this is the way of tzaddikim. Whatever they achieve, they do not count it as anything, because they cleave to Hashem and walk in His ways, and where you find His greatness, there you find His humility. So Avrohom said, I am dust and ashes, even after speaking with Hashem face to face, and his children are promised stars and yet remain like sand in their own eyes. Noach knew he was a tzaddik, and so, next to Avrohom, he would not have felt significant.
Source: Tiferet Shlomo, on Torah, Noach:4
After you do something good today, whether it is a kindness, a mitzvah or a hard act of patience, resist the urge to replay it or mention it. Let it go quietly, as Avrohom did, and turn your attention to the next thing Hashem puts in front of you. If a compliment comes, say thank you and move on. Real greatness, the Tiferes Shlomo teaches, feels light on the person who carries it.