The second of the middle brachas of Shemone Esray is Ha’Shivanu. The Mishna Brura mentions that this is the second bracha because after a person has knowledge (which we ask for in Atta Chonain), he now has the freedom to choose bad or good. Therefore, we pray that we can overcome our Yetzer Hara and properly serve Hashem.
4. Be kind to yourself. Speaking badly even about yourself is unethical.
הלכות שמירת הלשון 