The names of the 12 Shevotim were all together on the Choshen worn by the Cohen Gadol, and they were called “Avnei Milu'im” (“full” stones). The only way we can have 12 Shevotim getting along together on the same Choshen is when each Shevet is: מָ לֵ א full; either with לְ מַ לֵ א כְרֵיסוֹ בַ תּוֹ רָ ה “filling” your belly with Torah, or each one with a full realization of his own Maalos. If he knows only ½ of his Maalos, he can fall into Kin'ah and Churban. People who are “full” get along with others, and are happy with other people’s success; like Ahron who was happy with the success of Moshe (וְר אֲךַוְשׂ מ חַבְל בוַֹ).
You may need to spend time, literally counting (and writing) your blessings, and then your whole life will have a Bracha and you will have an Ayin Tova for others.
