A second reason not to take revenge because you are ultimately hurting yourself

Secrects of TALMUD YERASHALYAMI  הלכה: כְּתִיב לֹא תִקּוֹם וְלֹא תִטּוֹר אֶת בְּנֵי עַמֶּךָ. הֵיךְ עֲבִידָה. הֲוָה מְקַטֵּעַ קוֹפָּד וּמְחַת סַכִּינָא לְיָדוֹי. תַּחֲזוֹר וְתִמְחֵי לְיָדֵיהּ. HALAKHAH: It is written: “You should not take revenge or nurse hatred against your fellow countrymen.” How is that? He was cutting meat and the knife fell down on his hand. Should he go and hit his hand? https://www.sefaria.org/Jerusalem_Talmud_Nedarim.9.4.2