As a woman, what can be the best revenge to your coworkers (both male and female) who disrespected you?

As a matter of fact, I left the job. They used to bully me and treated me real bad. All I read and hear is how karma is a bitch. I believe it's all in saying, why do good people always suffer and the bad guys get away with it? Please enlighten me because I want to have the last laugh.
As a woman, what can be the best revenge to your coworkers (both male and female) who disrespected you?
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