Even after getting revenge and succeeding, why do I now feel worse?

I got revenge on my 8th grade tormentors; a former crush (he faked it, pretended to like me) and two mean girls that orchestrated a humiliating party for me. It was all planned, premediated. My best friend Mia was on my side and left the party with me. I've been away from social medias for the longest and even changed to a private school as a result. They ruined my self-esteem that day. The once shy girl disappeared forever.

12 years later:

They didn't recognize me and I got revenge on all 3 of them, did them worse than they did to me. Mia and I celebrated this victory. Now all of the suddenly, I don't know why I'm feeling more miserable than ever. I got what I wanted, the 3 of them at my mercy, their hurtful expressions, their sudden ''omg I'm sorry'' as soon they finally recognized who I was. I was going to continue with my revenge (wanted to make them suffer more) but I started crying and couldn't anymore. But what's happening to me?

I don't know what's happening. I'm feeling worse than before. Suddenly I can't continue with my revenge. I succeeded and got what I wanted. But no... I'm not happy. I feel trashy, as if I've achieved NOTHING. Why?

Even after getting revenge and succeeding, why do I now feel worse?
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